例句與用法

1. The results indicate that submarine hot water deposition is the main ore - forming process of the uranium - bearing vonsenite deposit , and that the economic deposit was formed on the basis of further enrichment of boron and iron through the superposition and transformation by regional metamorphism and migmatization
   研究表明，該礦床的成礦作用主要表現(xiàn)為海底熱水沉積成礦，區(qū)域變質(zhì)混合巖化作用對礦床進(jìn)行了強(qiáng)烈的疊加改造，使硼鐵進(jìn)一步富集而形成工業(yè)礦床。
2. The research for metallogenic evolution mechanism in the region indicates that gold ore formation has undergone three stages : gold elementary source bed formation stage from the neo - archean to the paleo - proterozoic and meso - proterozoic , regional metamorphism - migmatization gold reenrichment stage at the late meso - proterozoic , structure - fluid - gold mineralization stage at the yanshan period
   對礦帶成礦演化機(jī)理的研究表明，金礦形成經(jīng)歷了3個(gè)階段：新太古至古、中元古代金初始礦源層形成階段；中元古代末期區(qū)域變質(zhì)混合巖化金再富集階段和燕山期構(gòu)造流體金成礦作用階段。