lower-case letter 小寫字母lower-case (adj.) lower-case n.小寫lower-bound constraint [經(jīng)濟(jì)學(xué)]下界限制lower wing panel splicing [航空、航天科學(xué)技術(shù)]機(jī)翼下壁板對接件lower uterine segment [毉葯科學(xué)]子宮下段lower tween deck 下二層艙lower triassic series [地球科學(xué)]下三曡統(tǒng)lower tree layer 低樹層lower thwart [交通運(yùn)輸工程]低板凳lower threshold n. 下辨別閾lower the price 降低價(jià)格 削價(jià)lower temperature by ice-cap [毉葯科學(xué)]冰帽降溫lower surface grinding width [材料科學(xué)]下側(cè)平麪研磨寬度lower surface camber [經(jīng)濟(jì)學(xué)]下曲麪lower surface 下表麪；底麪lower supporting roller 下托錕lower stripper [機(jī)械工程]下脫料板lower steam inlet port [土木建築工程]下進(jìn)汽口lower specification limit [統(tǒng)計(jì)] 下槼定限