It did not furnish an explantation for the heat generated by friction.它未能圆满地解释因摩擦而产生的热.kinetic friction动磨擦In order to assess the friction of lubricants on multifilament yarns , finish - free yarns are required.为了评定润滑剂对复丝...
The injured man was lying motionless on his back.那名受伤的男子一动不动地仰面躺在那里。Fish and seaweed rose, caught motionless in the surging water.鱼和海藻浮起来，在汹涌的水流中动弹不得。Her hands were motionless.她双手静止不动。...
the insidious effects of polluted water supplies供水系统污染的潜在恶果...foul polluted water...恶臭的脏水Polluted insulators may flashover at any time under disadvantage weather conditions.在恶劣的自然环境下,积污绝缘子随时可能发生闪络.The police have warned ...
有些粮食作物歉收。但棉花的收成仍相当不错。Some of the food crops failed. However, the cotton did quite well.他们一直用小麦交换棉花和木材。They have been bartering wheat for cotton and timber.棉花价格始终保持坚挺，需求旺盛。Cotton prices remain firm and demand is strong....
He is paralyzed as the result of a would - be assassin's bullet years ago.几年前有人对他行刺未遂,但子弹使他瘫痪了.But the very imminence of the emergency paralyzed his invention . Good!常言说得好,急中生智,可汤姆这回却束手无策,对,就这么办.A stroke had paralyz...
You know the risks of promiscuous sex.你知道滥交的危险。They were taking a promiscuous stroll when it began to rain.他们正在那漫无目的地散步,突然下起雨来.Alec know that she was promiscuous and superficial.亚历克知道她是乱七八糟和浅薄的....