Semikov谢米科夫semin.半挂车；半挂车货车；<非>半决赛pref.表示“一半的；部分的；不完全的”semi-proportional voting system半按比例投票制semi-automatic switching system半自动交换系统semi-finishing tooth of broacher拉刀的半精切齿semi invariant exterior derivative半不变外微分semistrict invariant quasimonotone半严格不变拟单调映射semi-industrial gas tubine plant半工业燃气轮机装置semi - linear parabolic equation半线性抛物方程semi-metallic friction materials半金属摩擦材料semi - linear evolution equation半线性发展方程semi-supervised machine learning半监督机器学习