周围的矿井里的确有沼气聚积。Methane gas does collect in the mines around here.尽管矿井的安全状况有了很大改善，矿工的家属仍然害怕最糟的情况会发生。Though mine safety has much improved, miners' families still fear the worst.矿井中用钢制通风机来保持空气流通。The pit is ventilated by...
Strange vapours burst out of the factory during the accident.事故发生的时候,有奇怪的水汽从工厂里喷出来.His brain was clouded by vapours and dreams.他的脑子里充满空想和梦幻.Noisome vapours arise from the mud left in the docks.难闻的蒸汽由船坞中余留的泥浆散发出来。...
Thus only the metabolizable portions of a feedstuff can provide energy and essential nutrients.因此,只有饲料的可代谢部分可提供能量和必需的养分.The weighing system is an important core part of the feedstuff mixing.称重系统是饲料搅拌车核心的组成部分.Cotton'...
He was a specialist in ambushes, he said, and explained his tactics.他说自己是埋伏战斗方面的专家, 并讲述了他的战术.It makes ambushes rather fun.它使得埋伏战术非常有趣.Instead, there was a series of sinister ambushes , many of them on public transport.不过...