起泡剂是能够发生化学反应并产生气体的物质.Foaming agent is a chemical reaction can occur and produce gases.运用GC-MS剖析两起由起泡剂引发的选矿事故.Two mineral processing accidents resulted from frothers are analyzed by means of GC - MS....
他也是杰出的素描家和 铜版画 家.He was a sketcher and a copper - plate engraver .蚀刻画 、 铜版画 、 平版画以及雕刻构成了他书画刻印的作品.The etchings, drypoints, lithographs , and engravings together formed his graphic work.他将铜版画浸入到酸性溶液中.She soaked the etching...
Only connected interstices can act as elementary conduits within the formation.在地层内只有连通的空隙才能起导水通道的作用.Energy conduits to Sex and Base chakras are blasted open.能量导向性和基础查克拉被害者开启了.This paper introduces a new shuttle passive ...