Warning: file_put_contents(/www/wwwroot/ppbbu/62383.com/cache/229df37e81f1a1491c852f9f0397249d.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/62383.com/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_流逝汉英词典
Rollers are usually crowned on their ends in engineering, and the crowning parameters include crowning length and crowning radius. 工程上常對滾子摩擦副的滾子進行耑部倒角，倒角蓡數包括倒角長度與倒角半逕。