rock discontinuities的用法和样例：
例句
- The geometrically combined relation of the syncline stucture with the pit controls the mechanical effect of the stuctural plane and rock mass structure.
向斜构造与采场的几何组合关系控制着结构面和岩体结构的力学效应。 - Based on general method of spatial block topological identification with stochastic discontinuities cutting, the block identification of slope and cavern rock mass is studied.
在随机结构面切割下全空间块体拓扑搜索一般方法研究基础上，进行边坡及洞室岩体的全空间块体搜索问题研究。
