从挑高的位置它可以分析或测距，可以下达瞄准设定到火炮，更可以观察弹着据以估算落点修正。

From his elevated station he could estimate or measure range, could transmit sight Settings to the guns, and could observe the fall of shot and estimate corrections known as spots.

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记住，这实际上能替代低倍小口径的弹着点观察镜，但没法替代30倍的弹着点观察镜。

With that in mind, these actually can substitute for a very low power, small diameter spotting scope, but are no replacement for a good 30x scope.

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