像水一样无色的液体a colourless liquid like water将无色的小片状物过滤出来,用冷的甲醇洗涤.The colorless platelets were filtered washed with cold methanol.胂是一种无色的有毒的气体需要小心地对待.Arsine is a colorless, poisonous gas that requires careful handling....
简·波洛克古董店经营银器和小收藏品。Jane Pollock Antiques deals in silver and small collectables.有些人会把这些奇怪的铁片与木块称作“古董”。Some would call these odd pieces of iron and wood "antiques"他声称把所有的钱都投进了自己的古董生意。He claimed he ploughed all his money in...
The technique has been to mutate the genes by irradiation or chemicals.该技术是通过放射线照射或者使用化学方法使基因变异。the ability of the virus to mutate into new forms病毒变异成新菌株的能力A newer anti-HIV drug called pyridinone caused HIV to mutate int...