semigel半凝胶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-empirical relation半经验关系式semiconducting insulation半导体绝缘semicircular distribution半圆分布semi-annual installment半年一次的分期付款semi-variable over head半变动制造费用semi-quantitative value半定量数值semi-active control law半主动控制律semi-synthetic estrogen半合成雌激素semi-conductive coating[化] 半导体涂料semisimple vector lattice半单向量格