No sooner were we back in camp than the mobile telephone rang and a contact reported hearing gunshots from the village of Attan, to the South East of Buffalo Spring.
我们刚刚回到营地，手机铃就响了，一个当地联系人报告说听到从布法罗泉水东南的阿坦村传来枪声。
2
Side and bottom contact shoes are spring loaded to provide the necessary contact force.
边触式和下触式集电靴装有弹簧用来提供所需的接触压力。
3
This paper points out the disagreement of boundary conditions that generate force discontinuity in the linear spring damping contact model by analyzing the contact modulation of the clearance joint.