大量碳氢化合物如苯并芘也是诱变剂.A large number of hydrocarbons such as benzopyrene are also mutagenic.Fuson和Josien在 取代的苯并蒽类化合物的研究中验证了这一点.This has been confirmed by Fuson and Josien in studies on substituted benzanthracenes.目的: 采用高效液相色谱...
The laboratory has designed, tested and evaluated a lightweight, low - yield fission device.该试验室设计, 试验和鉴定了一种轻巧 、 低当量的裂变装置.The rate of droplet growth under different conditions can be evaluated.可以计算在不同条件下的云滴增长率.The determ...
泥石流的顶部布满了漂砾.The top of the flow were armoured with boulders.这些漂砾彼此相隔较远并有许多填隙泥.The boulders are quite widely separated and much interstitial mud is visible.有些调查者认为大漂砾是通过粘性泥石流中的涡流搬运的.Some investigators maintain that large ...
the United States of America美利坚合众国The United States of America is commonly abbreviated to U.S.A..美利坚合众国常被缩略为U. S. A..The president was asked to give a short talk on his visit to the United States.校长应邀简短谈谈访美情况....
铬在自然界中广泛分布, 生物体中主要以三价铬的形式存在.Chromium is widely distributed in nature, organisms mainly trivalent form of chromium.400系列不锈钢–一种铁 、 碳和铬的合金.Series Stainless Steel – An alloy of iron, carbon, and chromium.研究了不溶性腐殖酸对六价铬的吸附作用.T...
Soviet women carry the main burden of shopping, homemaking and child rearing.苏联的妇女承担的主要义务就是采购, 做家务及抚养孩子.Homemaking and rearing children are jobs for girls only.家管与抚养小孩都是只限女生做的工作.Many women still place emphasis on the imp...