常见例句Chapter four deals with the synthesis , spectroscopic and structural study of two novel chiral annuloid compounds derived from 1,2-diaminocyclohexane (DACH) via silicon and phosphor. 第四章讨论了两个硅、膦环合环己二胺手性配体化合物的合成及其光谱特性与结构特征。 返回 annuloid