1. Underground water consists of Quaternary pore water, bedrock fissure water and ve in fissure water in structure zones. 矿区地下水类型有第四系孔隙水、基岩裂隙水和构造带脉状裂隙水等三类。
2. The groundwater is composed of pore water, bedrock fissure water and vein-like fissure water in structural zones. 地下水有孔隙潜水、基岩裂隙水和构造带脉状裂隙水三种类型。
3. The joint, fissure, fault fracture are the typical modes of this discontinuation. Although the small size of the joint fissure, they reduced the strength of the rock mass. 这些裂隙的规模虽然不大，没有把岩体切割成块体，但裂隙的存在却大大改变了岩体的力学性质，从而降低了岩体的变形模量及强度参数，并且使岩体呈现明显的各向异性性质。
4. There is fissure among the crystalline grains of jade. And the microscopic fissure can be formed in jade when it is in the coarse grain and loose structure. 翡翠晶体颗粒间存在粒隙，组成颗粒粗大和（或）结构疏松不紧密时会形成微细裂纹。
5. the less the fissure′s inclination, the greater the influence of angle change between fissure′s strike and face on block top-coal caving; 裂隙倾角越小，裂隙方位与煤壁夹角变化对块体顶煤的冒落影响越大；
