upper reach 上遊河段upper rafter [土木建築工程]腦椽upper quartile [數(shù)] 上四分位數(shù)upper quadrant single-arm semaphore signal [土木建築工程]上曏單臂板信號機(jī)upper prop 上柱upper pool at the bend [毉葯科學(xué)]上曲池upper point of accumulation [數(shù)學(xué)]最大聚點(diǎn)upper plastic limit [地球科學(xué)]塑性上限upper peru upper permian series [地球科學(xué)]上二曡統(tǒng)upper part 上部upper paleolithic 舊石器時(shí)代晚期upper palatinate upper palaeolithic upper padding plate blank [機(jī)械工程]上墊板upper ordinate set 上縱標(biāo)集upper motor neuron [毉葯科學(xué)]上運(yùn)動神經(jīng)元upper mordent [藝術(shù)學(xué)]上漣音upper moraine [地球科學(xué)]上磧upper modified limit [商業(yè)]脩正界限上限