Drainge引流drainv.排出；排干；喝光；耗尽n.下水道；消耗drain tile strength test排水瓦管的强度试验drain saturation current漏极饱和电流draining depressurization疏水降压drain sb. of his energy耗尽某人的精力drain-source resistance漏极源极电阻,漏源电阻draining asphalt mixtures透水沥青混合料drain of foreign exchange外汇消耗drain millions of dollars花费数百万美元Drain it in a colander.在滤器中将水控干。drain-substrate junction漏衬底结