预涂层可以是任何常用的刚性成膜剂.Primers may be any of the common rigid film formers.磷化液主要由成膜剂 、 促进剂及添加剂组成.The phosphorated fluid mainly consists of film forming agent, promoter and additive.不纬紫外平照射,爆发平化学不正答,并使成膜剂撮合交联的化合物为感平剂.Via exposu...
Aquifers have water contents over 30 %.含水层的水含过30%.Untrammelled industrialisation, particularly in poor countries, is contaminating rivers and aquifers.不节制的工业化, 尤其是在穷国, 正在污染河流和地下含水层们.There are three types of aquifers: per...
Clarence Page is a columnist for the Chicago Tribune.克拉伦斯·佩奇是《芝加哥论坛报》的专栏作家。Allan gave an interview to the Chicago Tribune newspaper last month.艾伦上个月接受了《芝加哥论坛报》的采访。He became a reporter for the Herald Tribune.他成为《先驱论坛报》的记者...