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1·According to the detection method, it has designed a set of detection systems of photoelectric helmet sighting device.

根据检测方法，设计了一套光电头盔瞄准具检测系统。

2·The variational momentum of the zero position is that the sighting line of object space changing quantity after the fire, is the quantitative evaluation target of the optic aiming device.

零位走动量即瞄准线射击前后变化量，是光学瞄具稳定性定量评价指标。