atmospheric transparency

• 大气透明度

atmospheric transparency的用法和样例：

例句

1. In the United States, the Smithsonian Astrophysical Observatory and the Mount Wilson Observatory observed a decrease in atmospheric transparency that lasted for several months.
   在美国，史密夫宁天体物理学的观测站同威尔逊山观测站观察查出，最后几个月，大气透明度持续减退。