一、阀类Solenoid valve 电磁阀Check valve   单向阀Cartridge valve   插装阀Sandwich plate valve  叠加阀Pilot valve   先导阀Pilot operated check valve  液控单向阀Sub-plate mount  板式安装Manifold block  集成块Pressure relief valve  压力溢流阀Flow valve   流量阀Throttle valve  节流阀Double throttle check valve  双单向节流阀Rotary knob  旋钮Rectifier plate  节流板Servo valve  伺服阀Proportional valve   比例阀Position feedback   位置反馈Progressive flow  渐增流量De-energizing of solenoid  电磁铁释放
二、介质类Phosphate ester (HFD-R)  磷酸甘油酯Water-glycol (HFC)  水-乙二醇Emulsion 乳化液Inhibitor缓蚀剂Synthetic lubricating oil 合成油
三、液压安装工程Contamination 污染Grout 灌浆Failure 失效Jog 点动Creep爬行Abrasion 摩擦Retract（活塞杆）伸出Extension （活塞杆）缩回Malfunction 误动作Pickling 酸洗Flushing 冲洗Dipping process 槽式酸洗Re-circulation  循环Passivity  钝化Nitric acid 柠檬酸Argon 氩气Butt welding 对接焊Socket welding  套管焊Inert gas welding 惰性气体焊
四、管接头Bite type fittings 卡套式管接头Tube to tube fittings  接管接头   union   直通接管接头   union elbow 直角管接头   union tee 三通管接头   union cross 四通管接头Mal stud fittings 端直通管接头Bulkhead fittings 长直通管接头Weld fittings 焊接式管接头Female connector fittings 接头螺母Reducers extenders 变径管接头Banjo fittings 铰接式管接头Adjustable fittings/swivel nut 旋转接头
五、伺服阀及伺服系统性能参数Dynamic response 动态频响DDV-direct drive valve 直动式伺服阀NFPA-National Fluid Power Association 美国流体控制学会Phase lag 相位滞后Nozzle flapper valve 喷嘴挡板阀Servo-jet pilot valve 射流管阀Dither 颤振电流Coil impedance 线圈阻抗Flow saturation 流量饱和Linearity 线形度Symmetry 对称性Hysterics 滞环Threshold 灵敏度Lap 滞后Pressure gain 压力增益Null 零位Null bias 零偏Null shift 零飘Frequency response 频率响应Slope 曲线斜坡