英语词汇“surface mine ventilation, open-pit ventilation”的意思、用法、释义、翻译、读音、例句、短语、词组-英汉翻译词典

单词	surface mine ventilation, open-pit ventilation
释义	surface mine ventilation, open-pit ventilation 露天矿通风; 利用自然风流或人工射流，将露天矿生产过程中产生的有害气体及浮尘排放至露天矿外，使露天矿大气的品质达到规定标准的作业。
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