optical rotation的用法和樣例：
例句
- The glucuronides were then first methylated, then acetylated and optical rotations were tabulated.
葡萄糖醛酸甙然后首先甲基化，然后乙?；托舛茸霰?。 - Hence, the only difference in properties one should observe for the two carvones are the odors and the signs of rotation in a polarimeter.
因此，它們在性質(zhì)上的唯一區別應該可通過(guò)觀(guān)測兩種香芹酮的氣味和旋光儀中旋光度的符號而得知。
