This paper presents a kind of measurement instrument for meteorological visibility and lighting visibility using visible laser.

介绍了一种基于透射表原理的可见激光测量气象能见度和灯光能见度的仪器。

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The Beijing Meteorological Center on Sunday afternoon issued a code yellow alert to warn about fog in the capital, saying visibility would drop to less than 500 meters in most parts of the city.

北京气象中心周日下午发布了大雾黄色预警称，绝大部分地区的能见度将不足500米。

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The factors which impact visibility are induced into 6 species by factor analysis:F1-general meteorological factor;

利用因子分析方法，将影响能见度的诸多因子归纳总结为6类公因子，即：（1）公因子F1，代表常规气象因子；

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