falling head permeability test [土木建筑工程]變水頭透水試驗變水頭滲透試驗降落水頭滲透試驗[機械工程]變水頭透水試驗falling hammer dynamic rigidity meter [交通運輸工程]落錘動剛度儀falling flag [經(jīng)濟學(xué)]下降旗形falling film molecular still [經(jīng)濟學(xué)]降膜分子蒸鎦器falling film evaporator 降膜蒸發(fā)器 降膜式蒸發(fā)器falling film 降膜falling duet [藝術(shù)學(xué)]跌落雙人舞falling down a mountain falling down 跌倒;墜落;跌落falling debris 墜落的殘骸、碎片falling body [力] 落體falling back on potentate [宗教學(xué)]依伺國主falling back 可放下的falling awake falling (adj.) falling v. 落下;跌倒;減少;(建筑物、地方)淪陷;進入某種狀態(tài)(fall 的現(xiàn)在分詞) adj. (規(guī)模、數(shù)量等)下降的;減少的;落下的 n. (Falling) (美)法林(人名)fallibly adv.易犯錯誤地fallible (adj.) fallible adj.易犯錯誤的;可能不正確的fallibility (n.)