multiboot多重引导Multipref.表示“多个、多种、多方面”multiplicand length operand被乘数长度操作数Multi-relational learning多关系学习multi - path interference多径干扰multi-branch shaft system复杂分支轴系multi-grid tube converter多栅管变频器multiscale wavelet analysis小波分析multilayer dielectric stack多层介质膜multi-path fading channel多径衰落信道multichannel quantum defect多通道量子缺陷multilayer insulated vessel高真空多层绝热