Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/33ad5c578a4d341b3402f9ffb77b7c78.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 safety-plate例句_safety-plate英汉例句_safety-plate双解例句_甲百汇小鸡词典
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。