travelling mechanism英语标准发音:travelling mechanism英式发音:美式发音:翻译中文行走机构travelling mechanism - 基本释义[词典1]迁移机构travelling mechanism - WEB词典Travellinechanism行走机构travellinechanism gear行走机构齿轮crane travellinechanism起重机运行机构 参考资料: 1.百度翻译:travelling mechanism2.有道词典:travelling mechanism3.爱词霸:travelling mechanism