Distribution and transfusion of the geostatic pressure variate in company with mining space in underground mining. 地下开采中地压分布与转移随开采空间变动而变动,不同的开采顺序会带来不同的围岩稳定性.
He struggled to hold the bike down on the banked corners.拐过斜弯时他竭力将自行车把稳。George struggled wildly, going under and resurfacing at regular intervals.乔治疯狂地挣扎，不断在水面上浮浮沉沉。I struggled into a bathrobe and staggered down the stai...