Aside from the sheer novelty of it, such observations are useful in gauging the apparent sky brightness and transparency during totality.
暂且不说它有多么地新奇，全食时的这种观测，在精确计量视天空亮度和透明度时也是很有用的。
Aside from the sheer novelty of it, such observations are useful in gauging the apparent sky brightness and transparency during totality.
暂且不说它有多么地新奇，全食时的这种观测，在精确计量视天空亮度和透明度时也是很有用的。
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