他在重压之下依然开朗迷人,风度优雅。He was charming, cheerful, and graceful under pressure.房顶在雪的重压下突然坍塌下来。The roof collapsed under the weight of snow.那树枝在积雪的重压下啪的一声折断了.The branch snapped off under the weight of the snow....
Collet aimed the binoculars up the hill and adjusted image intensifier dials.科莱把望远镜对着小山丘,调节着镜筒.The intensifier tubes use the photoelectric effect.无源像增强管使用光电效应.Purpose: Used in X - ray image intensifier , flasher, analyti...