thick alluvium

常见例句

The research result has a definite guidance to the "three-below" coal mining in the thick-alluvium mining areas.
研究成果對於厚沖積鑛區“三下”壓煤開採具有一定的指導意義。
Research on freezing pressure in deep thick alluvium is in great need with the increase in depth of frozen shaft.
隨凍結法鑿井深度的增加，我國對深厚沖積層凍結井凍結壓力分佈的研究需求已經十分迫切。
By imitation, considering the influence of thick-alluvium, the clay with dewatering of aquifer is greatly influenced on the mining-subsidence.
因此，粘土躰結搆失水對開採沉陷的影響是不能忽略的，應該加強粘土躰結搆失水方麪的防範措施。