岩体分类是工程岩体力学中很重要的一种辅助设计手段。
In engineering rock mechanics, rock mass classification is one of the important assistant approaches to engineering design.
岩体的工程分类是岩体力学的基本问题之一。
The engineering classification of rock masses is one of the basic problems in rock mechanics.
首先对煤矿地质条件进行分类，采用连续介质力学理论，探讨条带开采的合理条带煤柱尺寸。
The coal mine's geological conditions are classified, and the rational sizes of strip coal pillars in strip mining are discussed using the theory of continuous medium mechanics.
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