Finally hydromining method, an appropriate method suitable for use in the area, were found through comparison between various mining methods.
通过多种采煤方法的试验、比较后，找到了一种对复杂煤层适应性较强的采煤方法——水力采煤方法。
Finally hydromining method, an appropriate method suitable for use in the area, were found through comparison between various mining methods.
通过多种采煤方法的试验、比较后，找到了一种对复杂煤层适应性较强的采煤方法——水力采煤方法。
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