astronomical refraction
英
美
- While a prism can make a dramatic rainbow, atmospheric refraction isn't that strong.
棱镜能够产生引人注目的彩虹，大气折射没有这么强烈。
- Therefore, atmospheric refraction modification must be made in order to improve the accuracy of measurement.
因此，为了提高测量值的精确度，必须进行大气折射修正。
