主: host分割: cut apart; break up主分力: main cutting force主分量: principal components主分脉: principal sector主分派: splitters主分区: dos; primary partion; primary partition主分散: primary dispersion主分酸: body acid主分子: host molecules分割: cut apartbreak up施主分子: donor molecule受主分布: acceptor distribution受主分子: acceptor molecule宿主分子库: library of host molecules有色主分: colored stock; coloured stock主分布函数: principal distribution function主分接头: principal tapping主分量, 主成分: principal component主分量变换: principal component transformation主分量分析: principal component analysis主分量模型: principal component model主分流器: master shunter主分配阀: main distributing valve主分配阀箱: main cutout distribution manifold