conoid helical-coil compression spring的意思|示意

圆锥螺旋改变弹簧 ...n spring 圆柱螺旋扭转弹簧 ; 圆柱螺旋改变弹簧 conoid helical-coil compression spring 圆锥螺旋扭转弹簧 ; 圆锥螺旋改变弹簧 cylindroid helical-coil extension spring 圆柱螺旋拉伸弹簧 ..

圆锥螺旋扭转弹簧 ... 圆锥螺旋形弹簧：conical spring 圆锥螺旋扭转弹簧：conoid helical-coil compression spring 圆锥螺纹：taper thread plug ...