n.抽油拉杆的夹具 rod clamp: 抽油杆夹持器; 钻杆夹板; 钻杆夹持器; 钻杆夹头pull rod: 推杆; 小拉杆; 钻杆立根pull-rod: 拉棒; 拉杆; 牵引杆pull rod(pull wire): 拉杆（拉绳）ejector rod clamp screw: 压机顶栓固定螺丝下载手机词典可随时随地查词查翻译
