久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

指出了內(nèi)消旋體消旋原因傳統(tǒng)解釋的不合理性.For the reason why optical activity of mesomer is counteracted classical answer was not convincing....

“內(nèi)消旋”的英語(yǔ)可以翻譯為：[化] internal compensation，meso- ...