rock shell

Influence of mining thickness on mechanical characteristics of working face and surrounding rock stress shell

采高对工作面及围岩应力壳的力学特征影响

Mechanical characteristics of fully mechanized top-coal caving face and surrounding rock stress shell

综放工作面及其围岩宏观应力壳力学特征

Potassium usually concentrates at the rock salt shell of the top in the salt deposits of solid facies .

钾在固相盐类矿产中，富集于顶部石盐壳的某些地段。

All Scorpios , watch where you walk on the beach , lest you run into a rock , sharp shell , or something else that would hurt your feet .

所有的天蝎们，当你们走过海滩的时候，尽量不要跑到石头，锋利的贝壳或者其他可能伤到你的脚的东西上。

The increased metallogenic element such as Zn and the decreased , Ni , Co , Cr , Cu entered adjacent rock or agglomerate in shell amphibolite .

成矿元素Zn等明显增加，Ni，Co，Cr，Cu降低并均进入围岩或聚集于外壳斜长角闪岩中。

The dissertation , proceeding with researching stability of surrounding rock , expounds the rationale of rock bolt 、 shotcrete and interact with surrounding rock when single shell lining operating , by the means of numerical simulation and in-situ test .

论文从研究围岩稳定性入手，以数值模拟计算和现场测试为基本研究手段。对单层衬砌在工作过程中锚杆、喷混凝土以及其与围岩相互作用的力学原理进行了系统的阐述。