Warning: file_put_contents(): Only 0 of 5055 bytes written, possibly out of free disk space in /www/wwwroot/ppbbu/80125.cn/index.php on line 58 safety-plate是什么意思，safety-plate的翻译，safety-plate音标、读音、用法和例句_食材铺反向词典
This article presented a teaching experimental platform on general measurement and selected mating about the roller bearing pretension backup plate. 介绍了一种以滚动轴承预紧垫片综合测量选配为主的教学实验平台。