这时，天空渐渐变亮的时候可以通过观测镜看到呈倒立状的太阳的新月形状。
This time, as the sky lightened, glimpses of an upside-down crescent of the sun could be caught through viewing glasses.
透过M - 4步枪的观测镜，班长发现一群人站在远处，疑似武装分子，但是因下午雾霭蒙蒙，辨不清他们的样子。
Looking through the scope of his M-4 rifle, the squad leader spotted a group of men standing farther down the road, suspected militants, their figures obscured by the afternoon haze.
观测工作是借助于各种望远镜来进行的。
The observational work is carried out on a range of telescopes.
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