绿片岩相以下的动力变质作用是矿化富集的条件.Dynamical metamorphism under greenschist facies is the condition of mineralizing enrichment.大水沟独立碲矿床的直接赋矿围岩为低绿片岩相变质岩.The host rocks of Dashuigou independent tellurium ore deposit are mainly green sc...
The bifurcated pipe of the TGP lock emptying culvert is a reinforced concrete framed structure.三峡永久船闸泄水分岔管是钢筋混凝土框架式结构.They ran for the culvert and ducked in.他们跑到涵洞跟前,钻了过去.Cracks are easily occurred during construct the r...