abnormal refraction

• 反常折射

abnormal refraction的用法和样例：

例句

1. Most of the catalogues made in that period were the by-productsof the time and latitude determinations, therefore the abnormal refraction would influencethe catalogues too.
   而当时大多数星表的编制都是时间纬度测量的副产品，无疑大气反常折射也给这些星表带来严重的误差影响。