optical rotation的用法和樣例：
例句
- The glucuronides were then first methylated, then acetylated and optical rotations were tabulated.
葡萄糖醛酸甙然後首先甲基化，然後乙醯基化和旋光度做表。 - 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，它們在性質上的唯一區別應該可通過觀測兩種香芹酮的氣味和旋光儀中旋光度的符號而得知。
