sixfoldadj.六倍的；六重的；六折的adv.六倍地；六重地；六折地sixnum.六six thousand eight hundred and seventy eight(=6878) 六千八百七十八six thousand three hundred and seventy three(=6373) 六千三百七十三six thousand eight hundred and seventy three(=6873) 六千八百七十三six thousand seven hundred and seventy eight(=6778) 六千七百七十八six thousand seven hundred and seventy seven(=6777) 六千七百七十七Six-Channel Audio Alarm Monitoring Recorder六通道音频报警器Six-degree-of-freedom mathematical model六自由度数学模型six phase permanent-magnet synchronous motor六相永磁同步电机six-roller reversing cold-rolling mill train六辊可逆冷轧机组