envelope line英语标准发音：envelope line英式发音：美式发音：翻译中文包络线envelope line - 基本释义[词典1]包络线envelope line - WEB词典envelope line包络线arc envelope line圆弧包络线dynamic envelope line动态包络线 参考资料： 1.百度翻译：envelope line2.有道词典：envelope line3.爱词霸：envelope line
