岩石坚固性可视为岩石抵抗破坏的一种度量。
The strength of rock may be generally regarded as a measure of resistance of rock in breaking-up.
岩石表面的坚固性，必须包括在地形研究之内。
Soundness of the rock surface must be included in the topographic study.
岩石表面的坚固性，必须包括在地形研究之内。
Soundness of the rock surface must be included in the topographic study.
应用推荐