到无烟煤阶段,有机态微量元素含量进一步降低.The organic affinity of trace elements decreases further in anthracite.尤其是针对无烟煤, 采用离线型CDC分解炉更为合理.To anthracite, adopting off - line type CDC calciner is more reasonable.地下矿产资源丰富, 优质无烟煤探明储量约4OOO万吨.Un...
Cannabis has been used for medicinal purposes since antiquity.大麻自远古以来就被作为药用。The pavilions beside the lake have an air of great antiquity.湖边的亭阁被修葺得古色古香.The origins of this ancient structure are lost in antiquity.这座古建筑的由来已...
A bimetallic strip bends when heated.加热时,双金属长条变弯.The fracture toughness of the bimetallic interfaces is lower than those of respective counterpart metals.在扩展路径上,界面和金属交替出现,且界面的断裂韧性不如相应单一材料的断裂韧性.The bimetallic catalyst for...