英语词汇drainline怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	drainline
释义	drainline drainern. 排水器；下水道装置 mainlinern. 主干线列车 mainlinen. 静脉注射；主线 vt. 把海洛因等毒品直接注入静脉 adrenalinen. 肾上腺素(使激动兴奋等)
随便看	speed control by code signals, receiver, telegraphic communication speed control by constant power speed control by constant torque speed control by field variation speed control by field weakening speed control by frequency variation speed control by markings, magnetic tape storage device speed control by means of a separate brake speed control by pole changing speed control by rheostat variation speed control by synchronisation signals, receiver, telegraphic communication speed control by voltage variation speed control chute speed control circuit speed control, contactor control speed control dc motor speed control device speed control disc speed control, drive roller mill speed control gear speed control governor speed control handle speed control knob speed controllar speed controlled motor

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