blasting for coal mine的意思|示意
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煤矿爆破
blasting for coal mine的网络常见释义
煤矿爆破 ... coal for coking distribution 炼焦煤分布 收藏 blasting for coal mine 煤矿爆破 收藏 Coal Reserves Calculation 储量计算 收藏 ...
blasting for coal mine相关例句
According to the construction experience of Guzhuang coal Mine in Yangquan City for many years, the paper analyses the application of smooth blasting in coal laneway bolting.
阳泉固庄煤矿根据多年来施工实践经验，分析光面爆破在煤巷锚杆支护施工中的应用。