back filling system 分段上向充填开采法
back filling injection port 壁后注浆孔
back filling injection device 壁后注浆装置
back filling behind abutment 台后回填
Tamper back-filling 回填夯实机
Back filling machine 背面上浆机
back-filling 回填 ; 回填充
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So the study on the deep back filling technology has great significance in mining practice.
因此,研究深井充填技术具有重大的现实意义。
Jiaojia's new type of cemented tailing material is a kind of good quality material for tailings back filling.
焦家新型尾砂胶结材料是一种性质优良的新型尾砂充填胶结材料。
This paper introduced the equipment, theory and the quality control measures in hydraulic dredging and back filling earth dam construction.
阐述了水力冲填的设备性能、工作原理及水力冲填坝施工中的质量控制方法。
So now we can go back and think about filling in these electron configurations for any atom.
实用现在我们返回来再考虑,关于填充任意原子,电子构型的问题。
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