煤的崩落 的英文怎麼說
中文拼音 [méidebēnglà]
煤的崩落
英文
coal fall-
Surface collapse of coal field is one kind of geological disaster with great hazard, which may result from distortion and breakout of overlying strata that lose their support after underground coal beds are excavated in a large area
摘要採煤區地面塌陷是由於地下煤層大面積采空引起上覆巖層失去支撐而變形崩落最後導致地面沉降一種危害很大的地質災害。
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