周围的矿井里的确有沼气聚积。Methane gas does collect in the mines around here.废物腐烂时会产生沼气。As the waste materials decompose, they produce methane gas.目前我国户用沼气推广应用的规模上居国际首位.The application scale of digester is the first one in the world....
London Underground said it may have to axe 500 signalling jobs because of government cutbacks in its investment.伦敦地铁称由于政府削减了投资，可能将不得不削减500个信号员的岗位。The United manager was to be seen frantically signalling to McClair...一会儿可...
families threatened with repossession受到房子将被收回威胁的家庭Unless repossession forces a sale, homeowners prefer to sit tight when markets are weak.除非回收房强制销售, 不然房主在房市低迷时更愿保持观望状态....
Brag is a good dog, but Holdfast is a better.实干胜于空谈.Holdfast ( hapteron ) In algae , the cell or organ that attaches the plant to the substrate.固着器:是藻类植物具有的一种起固着作用的细胞或器官.Holdfast ( hapteron ) In algae , the cell or organ...
氨基转移酶分布在细胞质 、 叶绿体和微体中.Amino transferases are located in the cytoplasm, chlorplasts and microbodies.已破坏的叶绿体需要加入ATP以提供合成蛋白质的能量.The damaged chloroplasts require the addition of ATP to fuel protein synthesis.从照光的叶绿体分离出来的套膜有很...
The strains of office are beginning to tell on the prime minister.首相开始感到公务繁忙的压力了。She could hear the tinny strains of a chamber orchestra.她能听见室内管弦乐队尖细的旋律。Every year new strains of influenza develop.每年都有新的流感病毒出现。...