low illumination level photography [攝影]微光攝影low idling speed test [交通運(yùn)輸工程]最低空載穩(wěn)定轉(zhuǎn)速試驗(yàn)low idling speed [交通運(yùn)輸工程]最低空載穩(wěn)定轉(zhuǎn)速low heat expansive cement [土木建筑工程]低熱微膨脹水泥low grade ore 貧礦low grade 低級(jí)的；低質(zhì)量的low gloss 光澤度不佳 啞光low gear 低速擋low friction composite brake shoe [交通運(yùn)輸工程]低摩合成閘瓦low frequency radio telescope [交通運(yùn)輸工程]低頻無(wú)線電望遠(yuǎn)鏡low frequency radio range [機(jī)械工程]低頻無(wú)線電頻段[電子、通信與自動(dòng)控制技術(shù)]低頻無(wú)線電頻段low frequency fluctuation [經(jīng)濟(jì)學(xué)]低頻起伏low frequency cyclic action [土木建筑工程]低周反復(fù)作用low frequency alternate load [土木建筑工程]低周反復(fù)荷載low frequency 低頻率；低周波low forceps delivery [醫(yī)藥科學(xué)]低位產(chǎn)鉗術(shù)低位產(chǎn)鉗分娩low flame-spread surface materials [交通運(yùn)輸工程]低播焰性材料low fired pitch fibre [經(jīng)濟(jì)學(xué)]弱火處理的瀝青纖維low fine gravel [能源科學(xué)技術(shù)]細(xì)砂含量低的礫石low field loss [經(jīng)濟(jì)學(xué)]低場(chǎng)損耗