1) specific visibility
![点击朗读](/dictall/images/read.gif)
比能见度
2) visibility
[英][,vɪzə'bɪləti] [美]['vɪzə'bɪlətɪ]
![点击朗读](/dictall/images/read.gif)
能见度
1.
On variation of visibility and air pollution in Meizhou Bay;
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湄洲湾沿海能见度和大气烟尘污染的变化
2.
Lanzhou Aerosol Optical Depth in Winter and Their Relation with Visibility;
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兰州冬季大气气溶胶光学厚度及其与能见度的关系
3.
Analyses on Variation Trends of Atmospheric Visibility and Its Effect Factor in Muilt-Cities in Central Liaoning;
辽宁中部城市群大气能见度变化趋势及影响因子分析
3) Visibility sensor
![点击朗读](/dictall/images/read.gif)
能见度仪
1.
So using continuous spectrum sun-photometer and forward scatter visibility sensor, we measured the atmosphere column optical characteristic and plan extinction coefficient on earth on the base of two experiments, respectively.
利用连续光谱的太阳辐射计和前向散射能见度仪,测量了大气柱光学特性以及近地面层的大气水平消光系数,获得了可见光波段的大气气溶胶标高的变化特征:随着波长值的增加,气溶胶标高减小;对于实验当地的情况,一般冬季气溶胶标高要大于夏季的气溶胶标高。
2.
The intensity of forward-scattered light is measured by the forward-scattering visibility sensor, which determines the extinction coefficient of the air, then the visibility can be obtained.
前向散射能见度仪测量前向散射光强度,确定大气的消光系数,进而获得大气的能见度值。
5) Low-visibility
![点击朗读](/dictall/images/read.gif)
低能见度
1.
Low-visibility occurrence at Chengdu Shuangliu Airport covers almost one third of a year.
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双流机场全年近 1/ 3的日子有低能见度天气出现 ,最多的冬季平均日数达到总数的 80 % ,而且低能见度有明显的季节变化和日变化。
2.
Among them, the influence of the low-visibility processes caused by fog, rainfall and other weathers on transportation have been special great.
近年来,我国的公路、航空、铁路、水上运输、城市交通等迅猛发展,各种气象灾害对交通运输质量和安全的影响受到全社会的广泛关注,尤其是因雾、强降水等引起的低能见度天气对交通的影响更大。
6) visibility meter
![点击朗读](/dictall/images/read.gif)
能见度仪
1.
Application research of visibility meter in laser-ranging ability test;
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能见度仪在激光测距能力检测中的应用研究
2.
In order to improve the technology in atmosphere detection and explore new,faster,and more accurate methods to retrieve atmosphere visibility,the atmosphere visibility was simultaneously measured in Qingdao with a micro-pulsed lidar,designed by Ocean Remote Sensing Laboratory,Ocean University of China,and a NQ-1 commercial visibility meter respectively.
为了改进乃至革新大气能见度的探测技术,探索新型、快速、准确测量大气能见度的方法,采用自行研制的能见度微脉冲激光雷达,进行了水平大气能见度测量实验,并同已经商品化的能见度仪NQ-1进行了同步对比测量。
补充资料:能见度
正常视力的人用肉眼能看得见目标物(或灯光)的最大距离。对于飞机的起飞和着陆,能见度是一个重要的因素。能见度的好坏受气象条件的影响,如雾、风沙、雨、雪等都会使能见度变差。能见度分为垂直能见度、水平能见度和斜视能见度。在航空中沿跑道方向的水平能见度又称跑道能见距离。影响垂直能见度的主要因素是空中云层,云底高度与飞行中的决断高度密切相关。允许起飞、着陆的条件主要是跑道能见距离和云底高度,并随机场设备、飞行器设备和飞行员飞行技术的不同而异。国际民航组织根据机场设备的不同,规定了三类飞机进入机场着陆的最低标准,其中第Ⅲ类又分为A、B、C3级,具体标准如下:
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条