Silicosis is occupational disease for certain, is coal silicon ill?矽肺肯定是职业病, 煤矽病?Attention must be paid on the synergic effect of smoking and silicosis in cancer complication.吸烟和矽肺同时存在时,有必要注意协同作用.Paper describes the thre...
...a funeral procession.出殡的队伍The marchers held a torchlight procession.游行者排成了火炬长龙。Their grief turned to hysteria when the funeral procession arrived at the cemetery…当送葬队走到墓地时，他们更加悲恸欲绝。Thousands of local people lined the ...
He was convinced that doctors and dentists knew best.他确信医生和牙医最清楚该怎么做。Children often fight shy of dentists.孩子们常常害怕看牙医.These figures are arrived at on the basis of dentists' receipts for 1991-1992.这些数字是根据1991至1992年间的牙...
He claims to sell the widest range of beers and lagers in the world.他声称自己出售的各种啤酒种类全球最多。Jack: Do you think Clint drinks lite beers or lagers?杰克: 你认为克林特·伊斯特伍德喜欢喝熟啤酒还是喜欢喝扎啤?...
屋顶的两面斜面都有破瓦片.On both slopes of the roof there are broken tiles.伽利略让小金属球从斜面滚下.Galileo rolled small metal balls down the incline.图3.21画出了平行于斜面的、相互保持平衡的几个力.Figure 3.21 shows the forces parallel to the plane that are respons...