常見例句雙語例句In the design of noncircular chain drive , the key problem is the design of pitch line of noncircular chain wheel.在非圓鏈傳動的設(shè)計中，一個關(guān)鍵問題就是非圓鏈輪節(jié)曲線的設(shè)計。 返回 chain pitch wheel