The underground blasting supplies magazine is one of the important facilities, to ensure the safety production of underground mine.
井下爆炸材料库是矿井安全生产的重要保障设施之一。
The underground blasting supplies magazine is one of the important facilities, to ensure the safety production of underground mine.
井下爆炸材料库是矿井安全生产的重要保障设施之一。
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