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.
汤匙起到镜子折光的作用，使钻石特别加倍光明和呈橙色色彩。
The spoon ACTS like a mirror to reflect the light and make the stone more brilliant and more orangy.
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