semiarcn.半弧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”semiautomatic keying circuit半自动键控电路semi-active control aystem半主动控制系统semi-integral polarography半积分极谱法semi-transparent materials半透明材料semi-indirect illumination半反射照明, 半间接照明semi-cyclic double linkage半环双键semi-quantification RT PCR半定量RT-PCRsemi-coordinate regulation半协同调节作用semicircular traveling waves半圆形随行波semi-permanent fluctuation半永久性波动