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用途广泛的金属材料 第三章 第三节 实践活动 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 正确选用金属材料 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 专题听证会: 是否应当停止使用铝质饮料罐? Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 各代表发言 v 铝矿工人 v 生产铝制易拉罐的工人 v 饮料公司老板 v 售货员 v 环保官员 v 回收公司 v 消费者 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 关于准备模拟听证会的小结 完成了一次教学实践活动 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 铝矿工人 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 铝的简介: v铝以化合态的形式存在于各种岩石 或矿石里,如铝土矿、明矾等。 v铝的氧化物与冰晶石共熔电解制得 铝。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 世界铝矿储量: 已探明储量约为250 亿吨, 其中,澳大利亚、南美、非洲等 地区铝矿品质较好,储量大,开 采成本低。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 铝与其他金属的价格对比: vAl 1916019190元/t vCu 6625066450元/t vAu 179.1179.45元/g vAg 34453455元/kg Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 开采铝矿既安全收入又高,作 为铝矿工人我们很愿意做这份 工作,所以我们支持继续开采 铝矿。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 铝矿工人铝矿工人 反对意见 成员:严正欣 杜嘉明 顾子谦 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 噪声危害和粉尘危害 噪声能引起人听觉功能敏 感度下降甚至造成耳聋,或引 起神经衰弱、心血管疾病及消 化系统等疾病。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 职业病-尘肺 尘肺是指在生产过程中吸入生产性粉尘所引 起的以肺组织纤维化为主的疾病。由于吸入粉尘 的质和量的不同而产生不同程度的危害。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 铝尘肺 铝尘肺是长期吸入含铝粉尘引起 的一种尘肺,它在肺内滞留而引起肺组 织纤维化(疤痕)常引起多种呼吸系 统危险的并发症. Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 返回 一些黑心矿主为私自牟取暴利非 法开采铝矿,如果长期在那里当矿 工,不仅收入得不到保障,还会有健 康或生命危险。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 铝质饮料罐的制造融合了冶金、化 工、机械、电子、食品等诸多行业的先 进技术 ,工人操作专业技能水平高。 数十年来,制造技术在不断改进,铝 罐重量已经大为减轻。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 1、 只要掌握了较好技术,这份 工作就比较稳定。 同时 铝合金易于加工、不易锈 蚀和破碎,成品率高,工作量相对较 小,且比较安全。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 地区 1997年铝质饮铝质饮 料罐年消费费量 欧洲 335亿亿只 为历为历 史最高 中南美洲 200亿亿只 亚亚洲( 除日本) 200多亿亿只 中国 80多亿亿只 世界铝制易拉罐用量将逐年增长 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 2、铝制饮料罐的用量在不断上升,所 以需要的铝制饮料罐的产量就要不断 增加,工人的收入可观。 我国的铝罐业具有广阔的发展空间。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 1、生产铝罐对工人的健康不利 工人在车间长期接触铝难免会有铝 元素进入人体,造成伤害,而铁制品或 纸制品就没有这样的问题。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 2、原制铝罐工人可能会面临下岗 再培训再就业问题。 国家不再批准新建铝易拉罐生产线 还可能关停并转少数厂家 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 蒋彤 肖遥 李莫沉 黄忠浩 郭娜 从两方面来说,各有各的前提, 只要工人的工作比较稳定、劳动 保护条件比较好,工人就支持, 否则就反对。 返回 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 饮料公司老板 观点:同意继续使用铝罐 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 1、铝制易拉罐性质优越,受到 全球人民欢迎,不可替代 铝罐作为饮料包装有以下的优点:铝罐作为饮料包装有以下的优点: l l具有优良的阻隔性能。可使饮料具有较长的货架寿命。具有优良的阻隔性能。可使饮料具有较长的货架寿命。 l l具有优良的机械性能。具有优良的机械性能。 l l不易破损,携带方便。不易破损,携带方便。 l l表面装饰性好,可以刺激消费,促进销售。表面装饰性好,可以刺激消费,促进销售。 l l可以回炉再生循环使用。可以回炉再生循环使用。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 我们了解到: u 欧洲2000年饮料罐总需求量355亿只 , 2001年上半年已达180亿只,与去年同 期相比增长5 u当前全球的年需求量在2100亿只左右, 占全球金属容器产量的一半还多。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 请看美国铝制饮料罐需求量情况: 各地原铝 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 有观点说铁罐的需求量将大于铝罐需 求量,那么请看下面这样一组数据: 估计在一段内,不存在铁罐需求量将会估计在一段内,不存在铁罐需求量将会 大于铝罐需求量的情况。大于铝罐需求量的情况。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 2、对人体危害和环境污染问题的考虑 v提高我公司产品的质量 希望顾客不要贪饮,加以节制。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 铝罐比其它包装容器更环保, v铝容器可反复回收减少环境污染; v铝材反复使用有效节约资源,保护地球环境。 咨询环境学家 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. v 同时积极兼顾 投资回收铝制品的方案 解决环境污染问题 我们合理开发产品 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 我的结论是: 可以继续使用铝制饮料罐 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 我同意停止使用铝制饮料罐有几条原因: 调查22种饮料发现,易拉罐饮料中铝含量较 高,比瓶装饮料高36倍。 易拉罐内壁某些部分未涂上有机涂料,会导 致铝元素逐渐溶解在其中。 易拉罐中的铝元素(包括软饮料含 有铝盐), 会永远留在胃中, 有害身体 健康(导致人的记忆力丧失) Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 第二方面:我认为它对环境 的影响是很大的 金属铝一般不会自行分解,如果 金属铝离子随雨水流入河流中或 渗入土层,又会对土壤、水源造 成环境的污染。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 可口可乐等 碳酸型饮料 普遍使用铝罐, 铝罐 铁罐 中国包装协会曾预测,按照目前的国际趋势 今后5-10年,国内铁罐的用量将大大超过铝罐。 王老吉等 饮料用铁罐。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 目前环保型纸包装在国际上是一种趋势 纸易拉罐成本仅为铝易拉罐的20%左右,可 小批量生产 且纸易拉罐的材料利用率达100%,可反复 使用。 符合现代社会保护环境、节约资源的要求 。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 结论:为了人类身体健 康,及环境保护,应停 止使用铝制饮料罐,换 用纸质、钢质、铁质或 其它危害小的物质。 我作为饮料公司的老板,不论从健康、 成本、环保等各个方面,都会选用其他 质地饮料罐 ,而停止使用铝制饮料罐 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 同意继续使用铝罐 售货员 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 理由:易销售、利润较高 v通过市场调查发现, 铝制饮料罐在机关、 宾馆等消费者群体的 销售情况一直很好。 全球每年铝易拉罐的消费量已达1800亿只, 当前,年需求量在2100亿只左右,占全球金 属容器产量的一半还多。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. v铝质易拉罐具有诸多优点,如重量轻 、密闭性好、不易破碎等,被大量地 用作啤酒、碳酸类饮料、果汁等饮料 的包装材料。 一个铝制易拉罐约重13.6克,铁制易拉罐重约30克 顾客喜欢 自重小 售货员喜欢 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 铝包装饮料罐进价适中,易销售, 利润高;并且易储存,市场空间广 阔,我们的工作有了更多的保障。 所以我支持继续使用铝制易拉罐。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 不同意继续使用铝罐 售货员 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 理由1:铝制易拉罐不再走俏 v质地较软,销售中、磕碰后易产生凹痕变形 等,导致消费者不愿意购买,损失很大。 v随着国际铝价不断攀升,铝制易拉罐厂家生 存日益艰难,我国 25 家铝制制罐企业中已有 3 家先后倒闭。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. v国家已出台相应政策,明确表示不再批准新 建铝制易拉罐生产线。 v在此背景下,钢制易拉罐和纸制易拉罐应运 而生,成为铝制易拉罐的替代产品。 铝制易拉罐销售量可能会受影响下降。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 理由2:钢制、纸质易拉罐成本较低质量 和价格优势明显促进销售 铝易拉罐纸易拉罐 投资生产线资金1700万200万 最小生产批量2000万2万 原材料需进口稻,麦草纸浆 能耗高能耗,国家 已禁止 发展工艺简单,低能耗, 环保 成本 约1元/只约0.3 0.4元/只 外观外观精美外观同样精美 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. v作为售货员,考虑到市场的需要和 自身的销售量,我反对继续使用易 拉罐。 返回 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 角色:环保局官员 组员:马岩松、谢麟子、王天啸、郭佳兴、 苏俊杰、郝英超 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 易拉罐的生产如能遵循以下原则,则可 以减小污染: (1)减量化原则(Reducing) (2)再利用原则(Reusing) (3)资源化原则(Recycling) Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 从源头 减少铝矿用量,取缔非法开采。 既减少污染,又可在很长时期内供应需求。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 易拉罐 盛器、装饰物、收藏品、 精美手工艺品甚至家俱。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 废品 熔炼成铝 同样的产品, 资源重复利用,减少废弃物污染, 节约原料矿石,减小生产和治污过程中的能耗。 铝土 铝 少耗能 71,减少95的空气污染。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 我国现状 垃圾 分类处理和回收利用的 效果不理想 公民环保意识薄弱, 缺乏 对垃圾相应的专业处理、回收利用 的专门机构和技术设备。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 当前我国需解决问题 发达国家再生铝产量占铝产量的 40%50%,我国的比例仅为21%。 再生铝行业的特点是:企业多,小而分 散;技术水平低,能源与资源浪费大,环境 污染严重; 回收与最终销售价格扭曲,与国际价格 相差较大,科技开发力量薄弱。 与发达国家 差距较大。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 易拉罐的循环率由于被拉的那一部 分一般丢失,但大概只占易拉罐质量 的5%,因此易拉罐的循环率也可达到 95%。可谓是高循环率了。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 综上所述只要我们能正确地开采、 生产,使用和回收,铝的污染是可降低的 。况且铝的需求量仍然很大,所以我们环 保局官员认为: 应继续使用铝质易拉罐。 返回 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 针对铝的回收 v铝的使用范围十分广泛。废弃铝制品量越 来越大。 v铝从矿石到制成金属,再到制成品成本极 高、耗能巨大。而由废弃金属铝再生、再 用能使能耗、辅料消耗大大降低,节约资 源、成本。 v在一定程度上,铝是可循环,可持续使用 的资源。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 针对铝的回收 v 通过我们对一个班级和学校的调查发现, v每月收集的废弃饮料罐大约有200罐,其中铝 制易拉罐所占的比例较多,约20%,按这样的 比例计算,全校每月产生的废弃饮料罐大约有 1000罐。这些易拉罐通过回收再加工,又能 过重新投放市场。 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile .Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 回收公司 代表:石万林 Eva

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