板岩

Only a skilled workman can split slate into layers.

只有能工巧匠才能把板岩劈成石片。

The Shuangwang gold-bearing albitite zone, which is composed of stratabound albitite, albitite breccia occurred conformably in the Xinghongpu Group, Devonian silt-slate.

双钠长石岩带主要为层状，产于泥盆系星红铺组粉砂质板岩中。

The combination of convex and plank with sunblind engraving, gives you a beautiful external appearance of building ,and anancient,steady feeling .

凸面板岩,与窗檐雕刻的结合,给人予美的建筑外,一种古朴、自然、沉稳的感觉.

New 730E frother was used in the flotation tests of common oxidized copper ore, oxidized copper ore with high combination rate and carbonaceous slabby rock copper ore of Tangdan Copper Mine.

采用730E新起泡剂对汤丹铜的一般氧化铜、高结合率氧化铜和碳质板岩铜3种行了浮选试验。