Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/43399d5fb6777ca0b09292f03d5ad517.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 ball-joint英英字典_ball-joint剑桥英语解释_ball-joint柯林斯英文解释_94生活常识网有道词典
1. N a coupling between two rods, tubes, etc, that consists of a spherical part fitting into a spherical socket, allowing free movement within a specific conical volume 球窝接头