科技英语常用单词

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1、objectivefunction目标函数observabilityindex可观测指数observablecanonicalform可观测规范型on-lineassistance在线帮助on-offcontrol通断控制openlooppole开环极点operationalresearchmodel运筹学模型opticfibertachometer光纤式转速表optimaltrajectory最优轨迹optimizationtechnique最优化技术orbitalrendezvous轨道交会orbitgyrocompass轨道陀螺罗盘orbitpe

2、rturbation轨道摄动orderparameter序参数orientationcontrol定向控制originator始发站oscillatingperiod振荡周期outputpredictionmethod输出预估法ovalwheelflowmeter椭圆齿轮流量计overalldesign总体设计overdamping过阻尼overlappingdecomposition交叠分解Padeapproximation帕德近似Paretooptimality帕雷托最优性passiveattitudestabilization被动姿态稳定path

3、repeatability路径可重复性patternprimitive模式基元PR(patternrecognition)模式识别Pcontrol比例控制器peaktime峰值时间penaltyfunctionmethod罚函数法perceptron感知器periodicduty周期工作制perturbationtheory摄动理论pessimisticvalue悲观值phaselocus相轨迹phasetrajectory相轨迹phaselead相位超前photoelectrictachometrictransducer光电式转速传感器phrase-

4、structuregrammar短句结构文法physicalsymbolsystem物理符号系统piezoelectricforcetransducer压电式力传感器playbackrobot示教再现式机器人PLC(programmablelogiccontroller)可编程序逻辑控制器plugbraking反接制动plugvalve旋塞阀pneumaticactuator气动执行机构point-to-pointcontrol点位控制polarrobot极坐标型机器人poleassignment极点配置pole-zerocancellation零极点

5、相消polynomialinput多项式输入portfoliotheory投资搭配理论poseovershoot位姿过调量positionmeasuringinstrument位置测量仪posentiometricdisplacementtransducer电位器式位移传感器positivefeedback正反馈powersystemautomation电力系统自动化predicatelogic谓词逻辑pressuregaugewithelectriccontact电接点压力表pressuretransmitter压力变送器pricecoordinat

6、ion价格协调primalcoordination主协调primaryfrequencyzone主频区PCA(principalcomponentanalysis)主成分分析法principleofturnpike大道原理priority优先级process-orientedsimulation面向过程的仿真productionbudget生产预算productionrule产生式规则profitforecast利润预测PERT(programevaluationandreviewtechnique)计划评审技术programsetstation程序设

7、定操作器proportionalcontrol比例控制proportionalplusderivativecontroller比例微分控制器protocolengineering协议工程prototype原型pseudorandomsequence伪随机序列pseudo-rate-incrementcontrol伪速率增量控制pulseduration脉冲持续时间pulsefrequencymodulationcontrolsystem脉冲调频控制系统pulsewidthmodulationcontrolsystem脉冲调宽控制系统PWMinverte

8、r脉宽调制逆变器pushdownautomaton下推自动机QC(qualitycontrol