The loading affection on supports in process of transformation. the roof coal behaviour on the face zone and its caving character at cavity edge are expounded.
According to study on changing law of elements and geochemical actions in a fault zone, evidence to determine character of the fault movement might be gotten.
根据断裂带内的元素和地球化学作用变化规律的研究，就可能测定断裂运动的特征。
3
The sealing character of abnormally high pressure zone and origin and migration of oil and gas are closely related.