短語(yǔ)詞組短語(yǔ)derived demand curve 引申需求曲線derived d curve 導(dǎo)函數(shù)曲線first derived curve [數(shù)]一階導(dǎo)曲線derived moment -rotation curve 導(dǎo)出瞬時(shí)旋轉(zhuǎn)曲線 返回 derived curve