| 释义 |
pitch circle 【机械学】(齿轮的)节圆 [亦称作pitch line] 以上来源于:《21世纪大英汉词典》 pitch circlen.(齿轮的)节圆详细释义源自:《新世纪英汉大词典》Collins外研社 n(齿轮的)节圆pitch circle节圆pitch circlen.(名詞 noun)【機】(齒輪的)節圓document.write('function myFunction(n){var c=document.getElementById("maintb").childre |