n.改變；變更

名詞alteration的復(fù)數(shù)形式.

Alterations occur at the interface between white blood calls and endothelium. 白細(xì)胞和內(nèi)膜的交界面發(fā)生改變。

Only those alterations that improved the speed or the accuracy would survive. 只有那些提高了速度和準(zhǔn)確性的改變會(huì)保留下來。

These design alterations form the basis for the machine's extreme dynamism in hard dragline operations. 這些設(shè)計(jì)變更形成了該機(jī)器在艱苦索斗鏟作業(yè)時(shí)的特殊物力基礎(chǔ)。