mine-fills storing and mixing shaft
... mine-fills mixing trough 混合沟 mine-fills storing and mixing shaft 注砂井 minehunting weapon 猎雷兵器 ...
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storage-mixed bin, sand filling chamber
安全管理核心考点《珍藏版》：煤矿开采专业术语 ... 水力充填 hydraulic stowing 注砂井 storage-mixed bin, sandfilling chamber 充填步距 stowing interval ...
基于48个网页-相关网页
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mine-fill storing and mixing shaft
mine-fills storing and mixing shaft
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mine-fills storing and mixing shaft
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