half permanent steel bridge [交通運(yùn)輸工程]半永久性鋼橋half period 半周期half pay half past twelve 12點(diǎn)半half past three 三點(diǎn)半half past ten 十點(diǎn)半half past eight 八點(diǎn)半half past 半點(diǎn);過去一半half opening 半開口half off 打五折half of thread angle [機(jī)械工程]牙型半角half of the day 半天half note 二分音符half nelson (摔跤時(shí)的)半扼頸(從對(duì)手背后以一臂穿過腋下反扣其頸背), (難以逃脫的)困難境地。half moon [天] 半月;半月形half mirror n. 半反射鏡half measures 不徹底的行動(dòng)。half measure 折衷辦法;姑息手段half mast vt. 下半旗half mask