multiechon.多次回声Multipref.表示“多个、多种、多方面”Multiscaling functions多尺度函敬multi-task principal多任务委托multi-line operation多头经营；多元化经营multi-layer compound多层复合multi-measuring hole多测孔multi-simple-robot多简单机器人multi-agent learning多agent学习multiplayer video game多人电视游戏multi-tenant feature多租户特性multilevel field-bus多级现场总线