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...
Her attitude is imperious at times...她有时态度傲慢。Data recorders also pinpoint mechanical faults rapidly, reducing repair times.数据记录仪还能迅速查明机械故障，减少维修次数。His last book is a bold, at times surrealistic mixture of fact and fancy.他...