Other ringless multi-amines and derivative 其他无环多胺及其衍生物
英语例句库
His gaze flicked from one of her empty, ringless hands to the other as she knelt, so that their eyes were level. 她屈膝跪下使双方视线水平;他来回看着她的两只手,从那只空的没有戒指的手到另一只。
Indeed, the emerging synthesis explains why most of the inner planets are ringless: they lack large retinues of satellites to provide ring material. 透过逐渐浮现的综合观点,我们就可以解释为什麽内圈的行星没有环:它们缺少够份量的随伴卫星以提供行星环材料。