The organic affinity of trace elements decreases further in anthracite.到无烟煤阶段,有机态微量元素含量进一步降低.Anthracite char has poor pore structure and small specific surface area.无烟煤焦分支孔贫乏,比表面积很小.Taixi anthracite with high quality cal...
The three men stunned into silence and inactivity.这三个男人在一边呆若木鸡、不知所措.There are three states of such inactivity.这种不活跃有三种情况....periods of lassitude and inactivity.阶段性的乏力懒怠Its compact appearance is a reflection of its inacti...