The research on the appraisal to the road lighting quality should use luminance standard and small target visibility level which are more conform to the human eye visual characteristic.
研究道路照明应以更加符合人眼视觉特性的亮度指标和可见度指标对道路照明质量进行评价。
In the two actual tunnel, we measured and calculated visibility of the small target under the three light source, and made a visual experimental method of the small target color.
在两条实际隧道中对三种光源照明下的小目标可见度进行了实际的测量和计算，并且提出了小目标显色性的视觉实验方法。
In the aspect of laser guide, when it is low visibility, the light scattering by fogs must affect laser-guided-bomb's work, such as the precision of guide decreases or cannot hit the target.
在激光制导技术方面，由于大气粒子对激光制导炸弹的影响十分明显，在能见度比较低的天气情况下，激光制导炸弹命中目标的精度就会降低以至偏离目标甚至不能命中目标。
The attack weapons made by use of the stealth technology or low visibility technology are main target threat which would be confronted by the aerial defense systems at present or in the 21st century.
采用低可见性技术或隐身技术制造的进攻兵器是2 1世纪防空系统重点对抗的主要目标威胁。
You can increase brand visibility if you implement marketing programs that keep you in front of your target audience at all times.
如果你想随时曝光在目标客户面前，可以采取增加曝光率的营销策略。
Right now, odds are that Comet Elenin will become an easy target for binoculars around mid-August and reach naked-eye visibility for a couple of weeks around perihelion.
现在，有一定概率的Elenin彗星大约在八月中旬会变成一个很明显的双筒望远镜观测目标，并在近日点附近的几星期达到肉眼可见的程度。
Right now, odds are that Comet Elenin will become an easy target for binoculars around mid-August and reach naked-eye visibility for a couple of weeks around perihelion.
现在，有一定概率的Elenin彗星大约在八月中旬会变成一个很明显的双筒望远镜观测目标，并在近日点附近的几星期达到肉眼可见的程度。
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