短语词组短语non -cylindrical coil 非圆柱形线圈a cylindrical coil 圆柱线圈Cylindrical coil compression spring 圆柱螺旋压缩弹簧cylindrical coil spring 高圆弹簧air -spaced cylindrical coil spring 大螺距圆柱弹簧coil cylindrical 筒形线圈 返回 cylindrical coil