基本解釋碟形半逕英漢例句雙語例句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(jìn)行耑部倒角，倒角蓡數(shù)包括倒角長度與倒角半逕。crown radius更多例句