Cars cause pollution, both smog and acid rain.汽车造成的污染既有烟雾也有酸雨。attempts to reduce smog caused by traffic fumes旨在降低车辆尾气造成的烟雾的措施The sky over the city was overspread with a heavy smog.城市上空罩上了一层烟雾....
把剃刀口钢化不太容易.It is difficult to steel the razor.玻璃表面平滑 、 不变形 、 无钢化斑.Its surface is smoothness, does not distort, no spot.采用人性化设计流线形外观, 驾驶室全钢化成形玻璃, 视野开阔.Using humanized design streamlined appearance, all - steel cab of form...
It enter the late blastula stage in 6 h 50 min.6小时50分进入低囊胚期.The cells of the blastula , called blastomeres, also each receive a full diploid set of chromosomes.这些囊胚细胞, 称卵裂球, 每个细胞都有一套二倍体染色体组.The outer layer of a blastula ...
It is proverbially easier to destroy than to construct.谁都知道破坏容易建设难.How many man - days will be needed to construct this irrigation canal?修这条渠道要多少人工?Every citizen has the duty to construct his country.每个公民都有建设祖国的责任....