科技英语单词

1、第一章 随机过程toss a diebe at liberaty to do sth./be free to1 time out of 6/（1/6）of the dicesample function/probability density function/autocorrelation fuction/delta funtionParsevals/shannon theoremHartley-Shannon lawenergy /power spectral density/spectral rangethe upper-frequency limit/lower bound/upper

2、 limittruncate截短，截断/cutoff截止/smooth tone transition过渡，转变/span横跨，跨越intuitive/intuitively直觉的/直觉地in an attempt to 为了it can be argued that 我们可以证明we observe that 我们发现we recall that，and identifyingas，we find that我们回想一下有，然后定义，最终我们发现deterministic确定性的heuristic启发式的，渐进的complementary互补的/compact/brief紧凑的；简洁的impl

3、ement使用/perform实施/exploit使用/employ使用/exploitation剥削/impractical无法实现的/suited to适用于successive/continuous连续的/discrete离散的/disperse/distribute分散，散开/discrete level离散电平analogously类似地/correspondingly与之相关联的/specifically具体说来/hereafter今后，从此以后/basically就是/broadly大致上neighboring samples相邻样品/adjacent cells相邻小区proc

4、edure方法/in this technique技术/process方法/methodequation式子，公式/expression表达式/formula公式，秘方/identity恒等式definition定义/theorem定理/law定律/axiom公理a negative statement of/associated with/negative theorem逆定理conceptually概念地/outline/synthesis部分/synopsis/conspectus提纲，要点，概要/reliably可靠地/reasonably相当地/appreciable相当的 /sel

5、ectively有选择地collection/ensemble集合，集/subset子集/specimen/example/instance例子interval/separation/spacing/gap间隔，距离variable变量/variation动态范围/argument自变量；辐角margin余量；容限facorization因式分解time invariant时不变的statistical average统计平均值root-mean-square 均方根/zero-mean 零均值covariance协方差uncorrelated不相关的stationary平稳的ergodic各

6、态历经的uniform/even均匀的，一致的/ normalized energy归一化能量performance性能/properties特性/characteristics/specifications特性，特征/availability可用性/nature/intrinsicoperation运算；设备/operator算子，接线员product乘积quotient商，系数，份额/ratio to除以/divided by除以convolved with 卷积sum和/be appended tosubtraction减法derivative导数differential微分，差分/di

7、fferentiate求微分/differences偏差，差异integral积分/integrate积分/integer整数/rational number有理数/real number/imaginary number实虚数Q有理数（quotient）Z整数（zahlen（德）N自然数（natural）C复数（complex）R实数（real）in proportional to 正比于第二章 信道容量be something ofM-ary trinal三倍的，三重的binary/ternary/quaternary/hexadecimal/16 band 16进制/mudulo-2 a

8、dder模二加法器the number of levels级数/stage级bandlimited gaussian channel带限高斯信道/lowpass/highpassamount of information/information content/quantity of information/information quantity信息量resistor电阻/resistence电阻值capacitor/capacitenceinductor/inductenceattenuate衰减，使衰减/small gradual changes缓慢变化/a slight varianc

9、e小变化方差antenna天线/antennedistort失真，使失真quantize量化/quantization/quantizor量化器/quantum量，定量equalizer均衡器signal-to-noise ratio信噪比bit error rateencompass/house/consist of包括，包含allow允许compres压缩/compand压缩扩展/expand扩展/expandor/compandor/compressor/companding/compressionimpress施加complication复杂化/contamination污染，污染物/

10、combination组合/component分量whereby/thereby由此/vice versa反之亦然/remain the sameoverride盖过/exceed超过/overwhelm淹没，覆盖/combat战胜/suppress压制devise发明/derivation/deduction推导，导出/contemplate预期，预料/presumed假定的，推测的/visualize设想/treatment论述，分析eduction减少，缩小/deduce/decrease/lowerformidable困难的，棘手的sophisticated复杂的，精于世故的/cyni

11、cal世故的rounding四舍五入/round off近似到trade off交换/switching/take on形成/convert转化/transform变换/handoff切换第三章 脉冲编码调制基础synchronous同步的data bits数据比特/data streams数据流/pulse train脉冲序列/code sequence码序列step size步长entropy熵，平均信息量PDM（pulse duration modulation）脉宽调制amount to实际上是/in practice实际上fromthrough 从到crest factor振幅因数（

12、振幅与有效值之比）reconstruct/reshape/recover/restore/recreatebe held and filtered 保持，滤波be fed into/feedback反馈serially串行地/parallel并行的interconnect使互相连接sign符号/ symbolparameter参数，参量applicable适用的，合适的/fundamentalfundamentalism原教旨马列主义（基本教义派）/expansionism扩张主义inverse求逆/reverse掉头mount山峰/peak峰值/summit峰会original原始的/raw

13、未加工的 raw dataunipolar单极性的errors be detected and/or corrected检错和纠错/detective侦探/detector检测器第四章 信道编码基础redundancy冗余/appendixif and only if当且仅当decibel分贝sufficient/sufficeshift register移位寄存器constraint length制约长度possess a considerable amount of structure拥有丰富的结构/be highly structured具有高度的结构化/seven-cell patte

14、rn结构power grid电网满足satisfy/meet demand/propertyextensively广泛的/intensively深入地distinct不同的/widely different完全不同的/be identical to等同于/correspond to对应于 /fundamentally different根本不同/considerably different相当不同/markedly显著地，明显地/apparentlyorthogonal正交的convolutional卷积的/cyclic循环的，周期的/cyclic code/cyclic shiftparit

15、y奇偶性，奇偶校验 bitsalphabet字符表/algebraic代数的 algebraic function/linear algebra/ linear combinations/linearityalpha/beta/theta/omegaretransmission转发，中继demonstrate公开表示/denote指示，表示/prescribe指示，规定/represent讲述/depict描述/invlove指的是，就是，涉及到matrix矩阵polynomial多项式/generator polynomial生成多项式/logic table真值表/state diagra

16、m状态流图/tree diagram树状图/trellis diagram网格图AWGN加性高斯白噪声（additive）ADPCM自适应差分脉冲编码调制bandwidth efficiency频带利用率code block length码组长度block codes分组码/be grouped into分组成/bank组/a bank of阵，阵列/be mapped into映射成FEC（forward error correction）前向纠错码demodulator解调器最小多项式polynomia irreduciblevector array向量数列emanate发出/emanat

17、e from发源于第五章 调制digitize将数字化/digital数字的/data数据/data telemetry数据遥测vestigial残留的，剩余的vestigial-sideband残留边带overall/collectively共同的，全体的representative典型的，具有代表性的appreciable可观的，可评估的line-of-sight propagation视距传播/travellingfractional部分的/fractional bandwidth相对带宽/absolute bandwidth绝对带宽beam波束brute force method强制法

18、transatlantic横渡大西洋的tune调谐jumble混杂rupture破裂。绝缘击穿/abrupt不连续的，急剧的，陡的stereophonic立体声的more or less或多或少的modulated signal已调信号/modulating signal调制信号/pleasant priminister/pleasing primierspectral component频谱分量in relation to关于，涉及，与相比/suit to适于，适合于/in an effort to为了DM（delta modulation）调制，增量调制ADM（adaptive）自适应增量

19、调制DPCM（differential pulse code modulation）差分脉冲编码调制ASK（amplitude）振幅键控FSK移频键控PSK相移键控DPSK（differential）差分相移键控TDM（time-division multiplexing）时分复用/demultiplexing解复用FDM/CDM/SDMaccount for解释，说明coaxial cable同轴电缆alternatives/alternatively分类categorize/classify/be classed asspecific具体的/specify/specifically/spe

20、cification规格/be more representative of更具典型意义finalize/semi-final半决赛transparent/apparent/transparency/appearanceoptical guide光导/guiding medium传导媒介mass medius/mediumfrequency translation property频谱搬迁特性/wireless近处无线/radio propagation远距离射频传播/radiationsuppressed carrier/be impressed on a carrierconstraint

21、s/limitations缺陷along this line在此范围内select/choose/electbe separated from从中分离出来/assignment分配/different assigned carrier frequency信源source/信宿destination/sink/第十三章 移动无线通信technological技术上的/geographic地理的geology/geologic/topographicalapplicable应用/compatible兼容反 pseduwire伪线/camonflage伪无线subscriber用户infrastru

22、cture基础设施/superstructure上层建筑cellular phone/mobile telephone蜂窝电话actuality实际情况；事实duplex双工的/full-duplex全双工/dual双重的/dual-mode双模/modulo模hybrid混合的/hybrid coder混合编码器wireless/over-the-air transmission/radio accessroam/move aboutpreassign预先指定，预先分配the turn of millennium一千年reciprocal倒数be proportional to the reciprocal ofinterstate州际的alphanumeric包括文字与数字的pager寻呼机idle空闲的charter许可证，协议/contract for the standardization of GSMpseudo random伪随机digital code数字码Nordic北欧人的retain the samethe basic concept