They are cheap, have a good visual range and are fast.
他们便宜, 拥有好的视野范围,并且行动迅速.
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The luminance gain has a great affect on visual range of LLL night vision systems.
亮度增益对夜视仪的视距有很重要的影响.
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The main form of future air battle would be featured by multi - targets BVR ( Beyond Visual Range ).
多目标 超视距空战将是今后空战的主要形式和发展趋势.
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