Photoelectric collimator is a kind of simple fire-control system equipped on a weapon system.

光电瞄具是配备于某武器系统上的一种简易火控系统。

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Photoelectric collimator is a kind of simple fire-control system equipped on a weapon system.

光电瞄具是配备于某武器系统上的一种简易火控系统。

youdao