煤層沖刷英文washout of coal seam
- 煤: 名詞（黑色固體礦物） coal
- 層: i 量詞1 （用於重疊、積累的東西 如樓層、階層、地層） storey; tier; stratum 2 （用於可以分項分步的...
- 刷: 刷構詞成分。
- 煤層: [地質學] coal rake; coal seam; coal bed
Under flood conditions, great amounts of topsoil are washed to receiving streams.
Over - grazing and irrigation methods that wash away topsoil were to blame for some of the damage, experts said. building developments and climate change were doing the rest
Thus, the piping - induced failure of two - layer foundation was verified as that ： mass flow firstly appears in the upper weakly permeable layer, and then underground erosion and scouring gradually occur from downstream to upstream between the serviously and weakly permeable layers
Study on index of drilling bits for coalbed rockburst influenced by gas
Discussion on evaluation methods for the denger of coal seam burst