常見例句雙語例句Secondly, the new generalized gradient is introduced to take advantage of the given directional derivative.其次討論了一類新的廣義梯度，這樣的廣義梯度能夠充分利用已經(jīng)有的方曏導(dǎo)數(shù)的信息。 返回 generalized directional derivative