![篦冷机施工方案中英文rev1_第1页](http://file3.renrendoc.com/fileroot_temp3/2021-12/5/8c3873ee-b80a-4576-8cf1-fc48122ea54b/8c3873ee-b80a-4576-8cf1-fc48122ea54b1.gif)
![篦冷机施工方案中英文rev1_第2页](http://file3.renrendoc.com/fileroot_temp3/2021-12/5/8c3873ee-b80a-4576-8cf1-fc48122ea54b/8c3873ee-b80a-4576-8cf1-fc48122ea54b2.gif)
![篦冷机施工方案中英文rev1_第3页](http://file3.renrendoc.com/fileroot_temp3/2021-12/5/8c3873ee-b80a-4576-8cf1-fc48122ea54b/8c3873ee-b80a-4576-8cf1-fc48122ea54b3.gif)
![篦冷机施工方案中英文rev1_第4页](http://file3.renrendoc.com/fileroot_temp3/2021-12/5/8c3873ee-b80a-4576-8cf1-fc48122ea54b/8c3873ee-b80a-4576-8cf1-fc48122ea54b4.gif)
![篦冷机施工方案中英文rev1_第5页](http://file3.renrendoc.com/fileroot_temp3/2021-12/5/8c3873ee-b80a-4576-8cf1-fc48122ea54b/8c3873ee-b80a-4576-8cf1-fc48122ea54b5.gif)
版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
1、Method Statement of Clinker Cooler ErectionWriter by: Safety Officer: Quality Controller: Technical Leader: Approve by: AVIC Pahang, Malaysia Department October,15th,2013目录一、篦冷机施工组织构成 1.Manpower Structure- 3 -二、篦冷机施工机具一览表2.tools table- 3 -三、篦冷机安装周计划3. Cooler erection plan- 4 -四、篦冷机施工技术方案Cooler const
2、ruction technique requirement - 6 -五、施工技术保证措施technique guarantees- 16 -六、 安全与文明施工保证措施safty guarantee. 18一、篦冷机施工组织构成 1.Manpower Structure窑头工段Sub-contractor工段长一人 工程师supervisor one班组长二人 技师team leaders two钳工五人 技工riveter five 焊工二人 技师welder two起重工一人 技师lifting worker one架子工一人 临时Worker oneTemporatory质安员一人 专
3、职quality controller one辅助工临时调配Auxiliary worker 工程技术部Mechanical Dept项目经理部project manager二、篦冷机施工机具一览表2.tools table序号SN名称Name型号Spec.单位Unit数量Num.备注Remarks1汽车吊mobile crane45T台12汽车吊mobile crane30T台14滑轮pulley 10T台35滑轮pulley5T台26螺旋千斤顶jacking screw10T台47螺旋千斤顶jacking screw5T台28手拉葫芦chain block5T台89交流电焊机AC weld
4、ing machineBX-30台310气割工具gas cutting machine套211水准仪level instrument台112经纬仪theodolite台1三、篦冷机安装周计划3. Cooler erection plan施工预计划:第一周基础校验、放线,预埋标板,砂堆制作,设备出库检查清洗说明:土建提供合格基础,场地平整达到要求,三方会检签证。First week:foundation inspection, embedded plates check, equipment package check第二三周下壳体、底梁、灰斗安装说明:三方会检签证。Second to thir
5、d week:downside casing, bottom beams, hoppers erection. Need inspection.第四六周传动装置安装,篦床安装调整。说明:三方会检签证。Forth to six week: driving device erection, grid bed erection and alignment. Need inspection.第七十周上壳体安装,破碎机安装,自动润滑装置安装。说明:三方会检签证。Seventh to tenth week: top casing erection, crusher erection, automatic
6、lubricating device erection. Need inspection.第十一周交筑炉。说明:会检签证。Eleventh week: handover to ramming work. Need inspection.篦冷机施工程序procedure基础验收及划线施工准备设备出库及检验篦冷机下壳体安装传动装置安装篦板安装上壳体及润滑系统安装破碎机安装试运转砌 筑1, preparatory work 2, foundation inspection and marking line; equipment package check3, bottom casing erecti
7、on4, driving device erection5, grid plate erection6, top casing and insulating system erection7, crusher erection8, ramming erection9, running test 四、篦冷机施工技术方案4. Cooler construction technique requirement 1、概述A. summarization往复推动篦式冷却机是回转窑的主要配套设备之一,其作用是降低熟料温度,改善熟料质量,提高熟料的易磨性,提高二次空气温度,改变火焰燃烧条件,节约能源。篦式冷
8、却机主要由以下几部分组成:下壳体、上壳体、篦床、篦床液压传动装置、篦床支撑装置、熟料破碎机、自动润滑装置及冷却风机组等。 reciprocating grate cooler is one of Rotary's major ancillary equipment, its role is to reduce the clinker temperature, improve the clinker quality, improve the grind ability of clinker, and improve secondary air temperature, change th
9、e flame conditions, save energy. Grate cooler mainly by the following components: the next shell, the shell, grate bed, grate bed hydraulic actuator, grate bed supporting device, clinker crusher, automatic lubrication system and cooling units such as wind.2、施工前准备a、施工人员熟悉图纸、安装说明书等技术文件。b、施工图会审。c、熟悉施工现
10、场和设备堆放场地。d、准备施工工机具、材料及施工电源。e、做好施工方案及技术交底(包括质量、安全措施)。B. pre-construction preparationa, officials familiar with the construction drawings, installation instructions and other technical documents.b, Check construction drawings.c, familiar with the construction site and equipment stack space.d, the cons
11、truction work to prepare equipment, materials and construction of power supply.e, well construction program and technical disclosure (including the quality, safety).3、基础验收及放线a、基础验收:基础验收必须认真进行,安排专人进行此项工作,会同厂方、监理及土建等有关部门,根据有关资料(工艺图、基础图、安装图、验收标准等)认真测量、记录,验收合格后,方可进行安装施工。设备基础各部分的偏差应符合如下要求:C. foundation c
12、heck and marking linesa, foundation check basis of acceptance must be carefully carried out, arrange to carry out this work, together with the factory, supervision and civil works and other relevant departments, according to the data (process diagram and foundation drawing, installation plans, accep
13、tance criteria, etc.) carefully measuring, recording, post-acceptance before the installation works. equipment parts based on the deviation should meet the following requirements:序号SN名 称items允许偏差allowed deviation(mm)1基础外形尺寸size±302基础坐标位置(纵、横中心线)coordinate(lengthways& transverse center lines
14、)±203基础上平面标高level0 -204中心线间的距离distance between center lines±1.05地脚孔中心位置center position of pocket±106地脚孔深度depth of pocket+20 07地脚孔垂直度verticality of pocket5/1000b、基础放线:用经纬仪或线坠等将窑体的轴线引到冷却机基础上。即划出一条窑纵向中心线的延长线。以窑头托轮的横向中心线为基准,将回转窑窑口圈热态工作点引到在冷却机基础上已画出的窑的纵向中心线上。并在此点划出与托轮横向中心线相平行的线。以划出的纵线为基准,划
15、出冷却机的纵向中心线,允许偏差1.5mm。以划出的横向线为基础划出冷却机的横向中心线及冷却机进料端第一根柱子的横向中心线,其允差1.5mm。b, foundation lines mark fall with a theodolite or a line such as the axis of the kiln to the cooler based on the lead. That is to draw a vertical centerline of the extension line of the kiln. Kiln wheel to the horizontal center l
16、ine as the base, the rotary kiln thermal operating point lead lap to the cooling machine has been drawn based on the longitudinal center line of the kiln. And on this point to draw center line with the wheel horizontal parallel lines. to draw a vertical line as the base, draw cooler longitudinal cen
17、terline, to allow deviation of 1.5mm. to draw the horizontal line is drawn based on the horizontal center line of the cooling machine and cooling machine feeding the first columns of the lateral end of the center line, its tolerance 1.5mm.4、设备出库和检查根据设备图和装箱清单仔细检查设备零部件的数量和质量,认真填写设备开箱检查记录。D Equipment p
18、ackage checkAccording to maps and packing equipment, equipment parts list carefully check the quantity and quality, carefully fill in the equipment out of the box inspection records.5、篦冷机机体安装a、侧框架安装:篦冷机基础经核对无误后,按如下工序进行安装。 放置第一段固定侧框架和底板(梁)于基础上。放置第二段固定侧框架和底板(梁)于基础上。放置第三段固定侧框架和底板(梁)于基础上。根据侧框架的安装布置及部件图对
19、侧框架进行找正。垂直度偏差为±1mm/m。相对标高允差±1mm。水平度允差0.1mm/m。同段的两片框架跨距应符合图纸要求,允差2mm,对角线允差3mm。找正合格后地脚灌浆、养生,当强度达设计强度的75%后,即可进行下步施工。ECooler body erectiona, Side Framework installed:Cooler base is verified by the following procedure to install. Place the first paragraph of the framework of the fixed side and
20、bottom (beam) at the foundation. Place the second paragraph of the fixed side of the frame and floor (beams) on the basis of. placed third paragraph of the fixed side of the frame and floor (beams) on the basis of. According to the installation side of the frame layout and framework components map t
21、o find is the opposite. Perpendicularity deviation of ± 1mm / m. Relative elevation of tolerance ± 1mm. Degree tolerance level 0.1mm / m.The framework of the same span of paragraph 2 should be consistent with drawings, tolerance 2mm, diagonal tolerance 3mm.Alignment of the feet after passi
22、ng the filling, and health, when the strength of up to 75% of design strength, you can proceed to the next step construction.b、底板安装:安装漏料锁风装置的漏斗及格栅。按图纸要求的位置依次将底板通过走线、倒链吊装到位,并按图施焊。 安装前端墙板,把紧螺栓,并连续焊接到侧框架和底板支承梁上。 安装下隔墙板,把紧螺栓并连续焊接到侧框架上,同时和底板或支承槽钢焊接。b, floor installation: installation materials to the loc
23、k device of the funnel and the wind grid. position by drawing in turn will take the line through the floor, hoisting chain back in place, press the Map on welding. Install the front wall, put the bolt, and continuously welded to the side of the frame and the floor supporting beam. Install a partitio
24、n wall, the bolts tight and continuous welded to the side of the frame at the same time and channel bottom or supporting welding.c、托轮支架安装:复查、调整侧框架的铅垂度及两片顶梁的跨距与对角线。依次将托轮支架吊装到位。 将托轮支架通过角钢焊在侧框架立柱上。c, roller bracket installation: review, adjust the side frame of the verticality and two roof beams and di
25、agonal stride. in turn lifting the wheel bracket in place. The roller bracket by welding angle iron framework in the column on the side.d、安装托轮组:同一段托轮组应在同一直线上,允差±0.5mm。托轮组应与篦冷机中心线对称,允差±0.5mm。同段托轮组相互平行,对角线允差±2mm。d, install the wheel group: group with a wheel should be along the same lin
26、e, tolerance ± 0.5mm. wheel group should be cooler center line of symmetry, tolerance ± 0.5mm. paragraph supporting rollers with parallel, diagonal tolerance ± 2mm.e、安装传动装置:按图纸设计的位置将传动轴轴安装到位。 轴的水平度、允差0.2/1000。液压系统安装:i安装时先卸下密封装置,将壳体内连接板和密封装置的其他装置的其他部件分开并固定在壳体内侧,然后将轴穿过壳体,安装好密封装置的其他部件、液轮
27、装置、行走车、轴承座、液压缸、行程开关装置等。ii安装时应确保轴水平,两侧的中心线严格对称。iii行程开关装置安装在距离液压站近的一侧。iv安装液压缸前,先将传动主轴精确调整到正中间位置并固定住,然后用液压缸安装工具将轴承座固定好、拧紧螺栓,按要求焊接牢固后方可装入液压缸。v止动垫片待将螺栓拧紧后折弯。e, installation of transmission: design by drawing the location of the shaft axis to install in place. the horizontal axis, tolerance 0.2/1000. hydr
28、aulic system installed: i remove the seal before installation will interconnect and seal within the shell of other devices and other components separately fixed inside the shell, then through the shell axis, installed in other parts of sealing devices, hydraulic wheel device , running car, bearing,
29、hydraulic cylinders, limit switch devices. ii should be installed to ensure that the axis level, on both sides of the center line of strict symmetry. iii travel switch device installed in the distance near the side of the hydraulic station. iv installation of hydraulic cylinder first before fine-tun
30、ing of the transmission shaft to the middle position and securely, and then install the tool cylinder bearing fixed, tighten the bolts, as required welding firm before they can mount the hydraulic cylinder. v stopper gasket when tightening bolts after the bend. f、活动框架安装:在地面上预组装活动框架装置,检查每段框架的对角线,其偏差L
31、1-L2±3mm将活动框架吊装到托轮装置上。活动框架中心线必须与篦冷机中心线相重合。然后将活动框架用螺栓固定到传动轴座架上,并用调整楔铁及顶丝将传动座架夹紧在活动框架的传动轴托架上。检查活动框架顶面标高尺寸,并做必要调整。f, activity framework installation: In the framework of the activities on the ground pre-assembly unit, check each piece of the framework of the diagonal, the deviation of L1-L2 <
32、177; 3mm the framework of activities to the wheel lifting device. centerline framework of the activities must coincide with the center line of grate cooler. Framework of the activities and then bolted to the rack shaft seat, and by adjusting the wedge and the top wire will be clamped in the activiti
33、es drive the mounting bracket on the frame of the drive shaft. Check the top level dimensions framework of the activities and make necessary adjustments.g、篦板安装:篦板梁根据所分布区域温度不同采取的材质也不同,安装时必须按设计要求进行布置。篦板安装:从卸料端开始,将第一和第二固定篦板梁紧固到侧框架角钢支座上,然后,在它们之间安装活动篦板梁,调好梁间的间距,在篦板梁上安装篦板,并保持篦板和螺栓在安装图中给定的第一、二排固定篦板顶面的尺寸(利用
34、卸料端第一排固定篦板作为基准作业点)。通过调篦板梁两端的垫片来调整活动篦板,与固定篦板之间交叠垂直间隙,且尽量使间隙均匀并保证在要求的范围之内,垂直间隙值见篦床的安装图。 如上所述,从卸料端按三排(固定、活动、固定)为一组依次地朝进料端重复上述工序。为了保证组间的垂直间隙相同,前后两组应交迭进行。使篦板梁和篦板推料面与篦冷机的中心线垂直,在确认各部尺寸与图纸要求相符后,用螺栓将篦板紧固到篦板梁上。篦板安装按所需的篦板和篦板梁布置按图进行。注意按要求调整好篦板横向及垂直间隙。所有的篦板梁和篦板调整找正并固定好以后,按安装图安装盲板。g, grid plate installation: grat
35、e plate beam according to the temperature distribution is different in different materials to the installation must be arranged according to design requirements. grate plate installation: Starting from the discharge end, the first and second fixed comb plate fastened to the side of the frame beam be
36、aring angle, and then, in their activities between the grate plate girder installation, tuning the spacing between beams in the grate plate beam Install grate plate and grate plates and bolts to keep the figure given in the installation of the first and second rows of the top comb plate size (using
37、the discharge end of the first row of the fixed comb plate as the base operating point). Beam by adjusting the grate plate gasket to adjust activities across the grate plate, and the vertical overlap between the fixed comb plate gap, and even as far as possible gaps and to ensure the required range,
38、 the vertical gap values, see the installation diagram grate bed. As noted above, from the discharge side by three rows (fixed, activities, fixed) for a group order to move the feed side to repeat the process. In order to ensure the vertical clearance between the same group, before and after the two
39、 groups should be overlap. Beams and comb to comb plate plate pusher grate cooler surface and the center line of vertical, in identifying the size and drawings in line ministries, the grate plate will be fastened with bolts to the grate plate beam. Grate plate installed by the required plate girder
40、grate plate and grate arrangement according to diagram. Note that the required adjust horizontal and vertical grid plate gap. All of the grate plate and grate plate adjusting beam alignment and fixed, then, according to installation diagram to install blind plate. h、上机壳安装:安装上机壳钢构架。焊接侧壁板、顶板。首先检查检查口、进
41、风口等的形位公差,是否符合图纸要求,要核对侧壁板、顶板的编号,对号就位。施焊时要求气密性好,不得有漏焊、气孔等疵病。h, upper casing installation: Install the chassis steel frame. welded wall panels, roof.First check the inspection port, the inlet shape and position tolerances, etc., whether the drawings, to check wall panels, roof number, sit in the right
42、place. Shi welding required airtightness, not tainted welding, porosity, etc. Defects.i、 安装顶部壳体和冲击板。i, install the top of the shell and the impact plate.j、安装机外固定及活动充气风管的主管道,注意适当调整风管与风机相连部分的角度及长度,使其与风机良好相配。j, install the machine and the activities of external fixation in charge of Road inflatable air
43、 duct, attention to appropriate adjustments to some of the wind pipe and fan connected to the angle and length to make it a good match with the fans.6、破碎机安装F Crusher erection7、润滑系统安装a、按设计图纸布置进行安装。b、管道布置要牢固、整齐、美观,力求捷径,减少弯曲,弯曲半径不小于管径的3倍。c、管路安装前应进行酸洗,内部不允许有铁屑、氧化皮、杂物等。d、分配器应安装在易受到指示杆操作的地方,并使指示杆均指向一个方向。G
44、Insulating system erectiona, according to design layout drawings for installation.b, piping layout should be firm, clean, beautiful, sought a shortcut to reduce bending, bending radius of not less than 3 times the diameter.c, pipe pickling should be carried out before installation, within the allowe
45、d iron, oxide, and other debris.d, dispenser should be installed in vulnerable areas joystick directions, and to instruct all point to a direction lever.8、无负荷试运转a、试车前准备工作首先应检查各联接螺栓是否拧紧,尤其是一些重要的部位,如地脚螺栓、活动框架与传动轴的联接螺栓、篦板与篦板梁的联接螺栓、篦板梁与活动框架及侧框架的联接螺栓等。各风机风管内畅通无异物,漏料斗中无异物,篦冷机各处不能有防碍其运行的工具及杂物存在。启动油泵,检查是否出油
46、,分配阀的工作情况,管路是否有渗漏,起动调整润滑系统,确认供油系统工作正常。点动电动机检查运转方向是否正确。 检查各温度计及压力表指针是否灵活准确。HLoad free running testa, pre-trial preparation should first check whether the connection bolts tightened, especially in some important parts, such as anchor bolts, a framework for activities connected with the drive shaft bol
47、ts, grate plate and grate plate beam connection bolts, grate plate girder frame and side with the activities framework connection bolts. The fan duct no foreign body within the flow, no foreign body in the drain hopper, grate cooler running around can not have hampered the tools and debris in its ex
48、istence. Start pump, check out the oil, the work of distribution valves, pipes have leaks, starting to adjust lubrication system, oil supply system is working correctly identified. Check operation to move the motor direction is correct. Check the thermometer and pressure gauge pointer is flexible an
49、d accurateb、试运转篦冷机主要空负荷试车时间不得小于8小时。 运转时仔细检查传动是否平稳,无异常声响。 篦床运行平稳,无卡碰、跑偏现象,篦缝均匀。 液压系统工作正常。 各部位轴承不允许有过热现象。 润滑系统工作良好,各润滑点满足润滑和密封要求,管路无渗漏情况。 各测量设备、控制装置及报警装置工作正常。 各风机工作正常。以上检查项目必须认真做好记录。b, commissioning cooler time of the main air load testing not less than 8 hours. carefully check
50、 the drive is running smoothly, no abnormal sound. grate bed is stable, no card touch, deviation phenomenon, even sew grate. hydraulic system working properly. various parts of bearings does not allow overheating.
51、60; lubrication system working well to meet the lubrication points, lubrication and sealing requirements, pipeline without leakage. The measurement equipment, control devices and alarm device is working properly. The fan is working properly.Check
52、 the above items must be seriously good record.五、施工技术保证措施1各道工序的施工,必须严格执行施工规范及设备安装图纸;2现场出现的设计更改,修配改工作,必须办理现场签证手续,并报AVIC工程师审批,批准后执行。5, technique guarantee1. Each process of construction, must be strictly enforced construction specifications and installation drawings;2. Scene design changes, repair wor
53、k to change, to apply for the visa site and report to the AVIC Engineer for approval, approval and implementation.六、 安全与文明施工保证措施 1、 安全工作方针: 以防为主,防管结合,专管与群管相结合,做到文明施工,以人为本,安全第一。 2、 保证措施: 1) 现场设置专职安全管理机构。 2) 在计划、布置、检查、总结、评比生产任务的同时,计划、布置、检查、总结、评比、安全工作。 3) 根据工程进度情况和季节情况,组织进行施工阶段性安全大检查和季节性安全大检查,对不安全情况,限期
54、整改落实到施工班组和人员上。 4) 进入施工现场的一切工作人员,必须正确穿戴好防护用品。 5) 施工现场文明整洁、材料、设备、机具放置有序道路畅通。 6)集体操作的工作,要分工明确,操作时应有专人统一指挥,步调一致。 7) 工机具使用前必须检查,消除事故隐患。 8) 夜间施工时要有足够的照明设施。 9) 吊装作业的规定 a、吊装设备必须有专人负责指挥,吊装前,要进行安全交底。 b、起吊前,对起吊重物的重量一定要查清,严格计算,选择吊点,严禁吊装机具超负荷工作。 c、吊装前,对于大件一定要试吊,起吊后重物下面严禁站人,大型设备吊装时,要设警戒线。 d、设备就位时,严禁把手、脚塞入起吊物和垫木、垫
55、块之间,以免压伤。 e、所有钢丝卡扣要卡牢,钢丝绳和卡扣要符合规定要求。 10) 防火、防爆措施 a、氧气瓶、乙炔瓶等易燃易爆物品,严禁碰撞和在太阳下直晒。 b、在进行焊(割)工作时,应将周围易燃易爆品清除,或防护,防止火花溅落引起燃烧或爆炸。 c、清洗设备时,严禁吸烟,清洗油严禁乱倒。 d 、施工现场应设有消防器材。 15) 临时用电规定 a、现场临时用电施工现场临时用电安全技术规范的要求。b、施工现场使用的电气工具,必须装有漏电保护装置及其它安全防护措施,绝缘性工具要经常保持干燥,并经常进行外观检查与耐压试验。6. Safty guarantee1, security policy:
56、160; Case-based, anti-tube combination, specifically to deal with the combined control group, so that the construction of civilization, people-oriented, safety first. 2 assurance measures: 1) Setting the scene full-time sec
57、urity management institutions. 2) In the plan, layout, inspection, review and assessment of production tasks at the same time, planning, layout, inspection, review, assessment, safety at work. 3) According to the progress of the works and seasonal conditions, organizations, construction safety inspection and a seasonal periodic safety inspection, unsafe conditions, a deadline for rectification implemented in the construction team and p
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 风力发电基础施工合同范本
- 软件授权使用合同范本
- 厦门市中心房屋租赁合同范本
- 别墅外装合同范例
- 2025年度市政基础设施工程担保合同模板
- 公司录用员工合同范本
- 农民世界游戏托管合同范本
- 公司做监控合同范本
- 义乌买卖合同范本
- 2025年度艺术品交易居间服务合同范本(2025年度版)
- 校园安全派出所
- 餐厅值班管理培训
- (正式版)JBT 11517-2024 刮板取料机
- XXXX无线维护岗位认证教材故障处理思路及案例分析
- 2024年浙江省自然资源集团有限公司招聘笔试参考题库附带答案详解
- 酒店春节营销方案
- 营销管理方案中的定价策略与盈利模式
- 2024年西宁城市职业技术学院高职单招(英语/数学/语文)笔试历年参考题库含答案解析
- 2024年临沂市高三一模(学业水平等级考试模拟试题)物理试卷
- 我国糖尿病视网膜病变临床诊疗指南2022解读
- 高级茶艺师技能鉴定(协会版)备考题库-下(多选、判断题汇总)
评论
0/150
提交评论