A pigeon emerges, wings flapping noisily, from the tower.一只鸽子从塔里钻出来，扑扑地拍打着翅膀。Troops are still in control of the television and radio tower.军队仍然控制着电视和广播发射塔。They occupied the first two floors of the tower.他们占用了塔楼的头两层。...
This provision gives the president total and unchecked power.这条规定赋予了总统绝对及不受约束的权力。Crops can be all too easily decimated by unchecked depredations by deer.任由鹿糟蹋会很容易把庄稼都毁了。If left unchecked, weeds will flourish.如果不加以遏制，杂草就会...
利用溶剂吸收采集丁酮甲苯混合组分,并用气相色谱 ( GC ) 测定.Absorbed by solvent, butanone - toluene mixture was analyzed by gas chromatography ( GC ).研究工作场所环境空气中二甲基甲酰胺、十一烷和丁酮混合物一次吸附、一次分离的定量分析方法.Objective To estabish a method of AES for determiana...