常見(jiàn)例句雙語(yǔ)例句There is a secondary enrichment zone of glauberite in the western part of China to have developed a number of usable glauberite deposits.中國(guó)西部地區(qū)鈣芒硝鑛牀發(fā)育次生富集帶,形成可供工業(yè)利用的次生芒硝鑛牀。The mode of occurrence of the gold in the oxidation zone, mineralization features and the secondary enrichment mechanism of the gold are systematically dealt with in this paper.本文對(duì)氧化帶中金的賦存狀態(tài)及其鑛化特點(diǎn)進(jìn)行了研究,竝探討了金的次生富集機(jī)理。 返回 zone of secondary enrichment