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1、3.按流量参数值层流laminarflow紊流turbulentflow气穴cavitation滞环hysteresis逻辑功能图形符号symbolsforlogicfunctions液压气动元件图形符号symbolsforhydraulicandpneumaticcomponents流体逻辑元件图形符号symbolsforfluidlogicdevices工步phase停止工步dwellphase工作工步workingphase快进工步rapidadvancephase快退工步rapidret

2、urnphase频率响应frequencyresponse重复性repeatability复现性reproducibility漂移drift波动ripple线性度linearity线性区linearregion法兰安装flangemounting底廉女装footmounting刚度stiffness噪声等级noiselevel阈值threshold颤振dither流量增益flowgain遮盖lap零遮盖zerolap正遮盖overlap负遮盖underlap开LIopening零偏nullbia

3、s零漂nulldrift阀压降valvepressuredrop分辨率resolution频率响应frequencyresponse幅值比ampl计uderatio相位移phaselag传递函数transferfunction5.按接头类型流道flowpass汕口port油雾气lubricator过滤器压降filterpressuredrop有效过滤血积effectivefiltrationarea公称过滤精度nominalfiltrationrating压溃压力collapsepressure

4、丁睛橡胶nitrilebutadienerubber；NBR聚四氟乙烯polytetrafluoroethene:PTFE优先控制overridecontrol空气处理单元airconditionerun汁管路布置pipe-work管卡clamper控制屏controlpanel避震喉compensator闪点flashpoint便携式颗粒检测仪portableparticlecounterb-platemount板式安装Positionfeedback位置反馈Progressiveflow渐增

5、流量be-energizingofsolenoid电磁铁释放7.按工作介质Phosphateester(HFD-R)磷酸LT油酯Water-glycol(HFC)水■乙二醇Emulsion乳化液Inhibitor缓蚀剂Syntheticlubricatingoil合成汕8.按安装类型Contamination污染Grout灌浆Failure失效Jog点动Creep爬行Malfunction误动作Pickling酸洗Flushing冲洗Dippingprocess槽式酸洗Re-circulatio

6、n循环Passivity钝化Nitricacid柠檬酸Argon氛气Buttwelding对接焊Socketwelding套管焊Inertgaswelding惰性气体焊柱寒泵pistonpump变量泵variabledisplacementpump泵的控制controlofpump轴向柱塞泵axialpistonpump液压马达hydraulicmotor单作用缸single-actingcylinder双作用缸double-actingcylinder差动缸differentialcylind

7、er伸缩缸telescopiccylinder10.伺服阀及何服系统性能参数Dynamicresponse动态频响NFPA-NationalFluidPowerAssociation美国流体控制学会Phaselag相位滞后Dither颤振电流Coilimpedance线圈阻抗Linearity线形度Hysterics滞环Pressuregain压力增益Null零位Nullbias零偏Nullshift零飘Frequencyresponse频率响MSlope曲线斜坡液压系统(hydraulicsy

8、stem)执行元件(actuator)液压缸(cylinder)液压马达(motor)液压泵(pump)液压辅件(accessory)齿轮泵gearpump叶片泵vanepump流量flowrate扌丰最displacement流量极限flowlimit漏leakage内泄漏internalleakage夕卜泄漏externalleakage耗气量airconsumption额定流量ratedflow供给流竝supplyflow流量系数flowerfactor回路图circuitdiagram功