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。
The back filling behind abutment in express highway is main constituent of highway construction.
高速公路结构物台背回填是高速公路建设的重要组成部分。
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。
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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