矸石山 hillock
- 煤矿矸石山喷爆,是煤矿生产中常见的一种灾害。
Spray explosion of gangue hill is a common calamity in coal mine. - 矸石山的边界条件是个完全暴露的空间,而采空区的边界却是一个有限的空间。
The boundary condition of coal gangue dump is entirely naked space, but the other is limited space. - 另外,植被恢复过的矸石山土壤水分入渗速率随入渗时间的增加而减小,呈幂函数递减规律。
Furthermore, with the infiltration time increasing by power function, the soil's infiltration velocity of re-vegetation in coal waste piles decreased.
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