Warning: file_put_contents(): Only 0 of 4925 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 steel retainer例句_steel retainer英汉例句_steel retainer双解例句_沉淀汉英词典
All moving components should use hardened steel: all slides should be installed with hardened or lubricated alloy wear plates and gibs, and with positive slide retainer. 所有移动的零件应使用硬钢料，行位必须用硬垫板和硬线条，而且必须有限位及定位锁。