Drainge引流drainv.排出；排干；喝光；耗尽n.下水道；消耗drained the water out.把水排出drainpipe climbing robot爬管机器人drain-gate capacitance漏栅电容drain substrate junction漏极 衬底结Drain the legal swamp.整顿法规：draining process in clay粘性土释水drain-channel junction漏极-沟道结drain ditch in the field田间排水沟drain waterlogged fields排涝drain saturation voltage漏极饱和电压