Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/ff0e2488631a0248a18f0aef0e979d58.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 crown radius是什么意思，crown radius的翻译，crown radius音标、读音、用法和例句_94生活常识网有道词典
Rollers are usually crowned on their ends in engineering, and the crowning parameters include crowning length and crowning radius. 工程上常对滚子摩擦副的滚子进行端部倒角，倒角参数包括倒角长度与倒角半径。