Warning: file_put_contents(): Only 0 of 4870 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/5678977.com/index.php on line 55 ring gauge英英字典_ring gauge剑桥英语解释_ring gauge柯林斯英文解释_加林查网西语词典
1. N a ring having an internal diameter of a specified size used for checking the diameter of a cylindrical object or part 环规[engineering] →compare plug gauge