Mechanical Jacks System : Four - beamtwo - pillar frame, main cylinder, pneumatic components, two - way and straight - line guider, hydraulic - driving system - feeding systematic.液气传动部: 四梁二柱拉杆式封闭框架机体结构 、 油缸 、 气动元件 、 双向 ...
They spent months of toil on the water conservancy project.他们为这项水利工程辛辛苦苦地干了几个月.Water resources conservancy lands: used for water conservancy and the facilities.一二水利用地: 供水利及其设施使用者.In 1958 he was put in charge of water con...
主要依靠B超检查判定胆囊的病变情况.Rely mainly on B - ultrasonography to determine gallbladder lesions.目的提高对胆囊切除术后残余胆囊的认识,做出正确诊断和治疗.Objective To improve the diagnosis and treatment of residual gallbladder disease after cholecystectomy....