紫外线指数

根据天气及紫外线指数状况可以分为多云多雨型、多云少雨型和少云少雨型。

Based on the weather and UVI in bathing season , the beaches could be divided into cloudy and rainy , cloudy and rainless , and sunny and rainless groups .

在阳光充沛的日子里，紫外线指数的日际变化。

Diurnal variation of UV index on a sunny day .

1999年5月&2001年10月在北京观象台对紫外线指数（UVI）进行了长期观测，结果表明：UVI季节差异明显，春、夏、秋、冬季的最大值分别为785987492299；

Ultraviolet Index ( UVI ) was measured at Beijing Observatory between May 1999 and October 2001.The results show that the UVI varies significantly in different seasons .

紫外线指数及其预报技术介绍

Index of ultraviolet ray and the introduction to its forecast technology

2002&2005年银川市紫外线指数的观测研究

Experimental study on ultraviolet index in Yinchuan during 2002 & 2005

当天空无云时，紫外线指数是最高的。

UV radiation levels are highest under cloudless skies .

区域熔融提纯仪的研制和鉴定便携式日光紫外线指数检测仪设计

Study and test of zone-refining equipment Design of a Portable Solar UV Index Meter

便携式日光紫外线指数检测仪设计

Design of a Portable Solar UV Index Meter

当紫外线指数属于中度或更高时，就需要采取防晒措施。

When the UV Index is moderate or above , sun protection is required .

紫外线指数越高，对皮肤造成伤害的机会越高。

The higher the UV index , the more likely the damage to skin .

留意紫外线指数。

Watch for the UV index .

设计并制作了一种便携式、低成本的日光紫外线指数检测仪。

A portable and low cost solar UV index ( UVI ) meter is designed and fabricated .

在紫外线指数偏高的日子，市民应尽量避免长时间在户外曝晒。

On days when the UV index is high , you should avoid staying outdoors for prolonged periods .

世界气象组织规定了单位紫外线指数相当于25mw/m2的红斑加权剂量率。

The world Meteorology Organization Standard UV Index unit equals to 25mw / m 2 erythema weighted dose rate .

紫外线指数预报上午11：30至下午12：30之间达到地表的紫外线辐射量

The UV index forecasts the amount of ultraviolet radiation that will reach the earth 's surface from 11:30 AM to 12:30 PM

在积累了数年数据之后，天文台作出研究分析，最近发展了紫外线指数预测服务。

After research and analysis of the data collected during the years , the observatory recently developed the UV index forecast service .

了解紫外线指数：当紫外线指数预报辐射级别为3（中度）或更高时

Know the UV index : when the UV Index predicts radiation levels of3 ( moderate ) or above sun safety practices should be taken

该报纸提供了一些诸如紫外线指数、晨练指数、防晒指数、洗车指数以及中暑指数等简单易懂的每日生活指数提示。

The paper provides easy-to-understand daily life indexes such as the ultraviolet ray index , morning exercise index , sun protection factor index , carwash and heat stroke indexes .

虽然你应始终针对过度暴露采取预防措施，但是在紫外线指数预报暴露级别为中度或更高时，特别注意采取阳光安全措施。

While you should always take precautions against overexposure , take special care to adopt sun safety practices when the UV index predicts exposure levels of moderate or above .

他成功指导学生研究如何预测晴天情况下的紫外线指数，为整个紫外线指数预测技术奠定了良好的基础。

He had guided the student to successfully come up with a method for forecasting the UV index on clear sky days , laying sound bases for the UV index forecasting techniques .

紫外线强度指数监测和控制系统

The Study of UltraViolet Radiation Index Monitoring and Controlling System

利用一般常规的辐射观测资料，通过经验公式计算紫外辐射的方法，讨论了紫外辐射强度的月际变化特征，并给出应用实例，对开展紫外线强度指数预报有一定的参考意义

A method was discussed to estimating and forecasting solar ultraviolet by use of a experience formule and the routine data of solar radiation The monthly change features of ultraviolet intensity were analyzed An example was given which has a certain sense for reference to do similar work

研究结果显示，模拟太阳紫外线辐射在撞击后飙升，超过了此前在地球上测量的所有紫外线辐射指数预报数据，并且会以这种状态保持两年。

UV levels in the study 's simulation soared beyond anything measured so far on Earth by the UV Index 's daily forecasts of overexposure to UV radiation , and remained that way for as long as two years .

参考国内、外紫外线（UV）预报服务的经验，制定了5个日光暴露的级别、相应的紫外线指数（UVI）及防护措施。

Five exposure categories corresponding UV indexes and protective actions are developed referring to domestic and foreign service experiences .