coal mine drilling machine的意思|示意

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coal mine drilling machine的网络常见释义

煤矿钻机文章详细信息关键词：煤矿钻机;;生产特点;;因素;;质量控制 [gap=429]Keywords: coal mine drilling machine;production characteristic;factor;quality control

coal mine drilling machine相关例句

The successful development of this drilling machine provided reliable safety equipment for drilling shallow engineering hole such as outburst-prevention holes and flank holes in coal mine.