for external drain 外部排水
external drain cooler 外置式疏水冷却器
External Drain Connector 外部排水连接
external ventricular drain 室外引流 ; 脑室外引流
External drain coolers often leaks from the steam blowed barrel or tubes of the early 200MW units, which have an effect on safe and economic operation of the units.
早期投产的国产200MW机组因设备老化，其外置式疏水冷却器经常会产生汽侧筒体被蒸汽吹蚀及钢管泄漏等故障，影响了机组的安全运行和经济效益。
The box cover is provided with a temperature control system, in the constant temperature box rear drain valve and an external power supply socket.
箱盖上有控温系统，在恒温箱的后部是排水阀及外接电源插座。
The external causes of brain drain in Gansu include environmental factors and university conditions.
总之，甘肃高校高层次人才的流失往往都是诸多因素综合而成的结果。
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