Working principle and structural features of SYZX 75 wire - line coring hydro - hammer are presented.介绍了SYZX75型绳索取心液动潜孔锤的工作原理及结构特点.A worker's arm was injured whilst operating a concrete coring machine.工人在操作混凝土钻孔机时引致...
They marched along shoulder to shoulder.他们肩并肩地前进.They were standing shoulder to shoulder.他们肩并着肩站着.They fell into step, walking shoulder to shoulder with their heads bent against the rain.他们开始迈着一致的步伐并肩而行，低着头躲避雨水。...