multiechon.多次回声Multipref.表示“多个、多种、多方面”multi-curve spectrum多线谱multi-roll flattener多辊矫直机multi-entry passport多次入境护照multiwindow processing多窗口处理multi - intelligence多元智力multiformed chromosome多叉染色体multi-window display多窗口显示multi-layer textiles多层织物multipath concellation[电] 多路删除multipolar coordinates多极坐标