短語詞組短語screw take -up device 螺旋拉緊裝置Screw Back -up Ring 螺旋襯環(huán)tail -pulley screw take-up 尾輪螺旋拉緊裝置coupling screw -up 擰接頭screw machine set -up operator 螺桿機設置操作員vertical screw lift take -up stand 立式螺旋升降收線架screw -type locking up device 螺旋式鎖緊裝置backing -up screw 止動螺釘;制動螺旋 返回 screw-up