The results show that vertical stress is equal to overburden stress at shallow level. Maximum principal stress is subhorizontal stress in the NE direction.
结果表明：显德汪煤矿垂直应力近似等于上覆岩层的自重应力，最大主应力为北东方向，且为近水平压应力。
2
Top horizontal navigation required with mouse over drop down sub menus.
前需要与横向导航鼠标向下子菜单下降。
3
According to the functions of the system is divided into horizontal commodity management sub-system, members of the management sub-system, sub-systems administrator.