Aluminum is made from bauxite.铝是从铝土矿中提炼出的.The seven leading bauxite exporters formed the International Bauxite Association.七个主要的铝矾土出口国组成国际铝矾土协会.Industry: petroleum, diamonds, iron ore, phosphates, feldspar, bauxite, uran...
The structure, the principle of work, bauxite floatation of BF - L floatation machine were presented.本文介绍了BF -L 型浮选机的结构特点, 工作原理及铝土矿选矿的适应性研究.The seven leading bauxite exporters formed the International Bauxite Association...
I left feeling disgruntled at the way I'd been treated.我受到如此对待因而愤然离去。He was disgruntled at their absence.他对他们的缺席不满.Disgruntled and defeated omnibus owners and drivers groaned aloud.心怀不满的和遭受挫折的公共马车商人和车夫高声叫骂着....