在水面上，折光的周日变化可能是很小的。
Over water the diurnal change in refraction is likely to be small.
弹性纤维通常是单独的，折光的，分枝的及吻合的纤维。
Elastic fibers usually occur as individual, refractile, branching, and anastomosing fibers.
利用折光率的数据确定你的油中，你的香芹酮馏份和与柠檬烯和香芹酮有关的柠檬烯组份的大概成份。
Using the refractive index data determine the approximate composition of your oil, your carvone fraction and your limonene fraction with respect to limonene and carvone.
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