semiton半音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-arid sandy area风沙半干旱类型区semitransparent mirror半透玫,半透明镜semicontinuous channel半连续信道semi-presidentialism半总统制semi-hydrated gypsum半水石膏semi-closed interval半闭区间Semi-implicit Demand半隐性需求semi-polar capacitor半极化电容器semi-double strength中厚玻璃semiautomatic exchange半自动电话局