As their applications we have studied the effect of air index gradient on laser alignment and the additional diffraction loss of laser caused by inhomogeneous pump.

应用于空气折射率梯度对激光准直的影响和不均匀泵浦引起的激光器附加衍射损耗。

youdao

Different tests were worked out to compare these parameters. The result of the study will indicate a relation between the Air Index of a weft yarn and the Settings of the weaving machine.

同时，设计了不同的测试方法来比较这些参数，并研究了纬纱气流指数与织机参数之间的相互关系。

youdao

Currently, pollutants are measured at different stations in a city and that data is aggregated to a single number (the air quality index) and published once a day on a website.

目前，污染物测量是在一个城市的多个不同地点进行测量的，然后数据会合计成一个数字(空气质量指数)最后在网站上每天发布一次。

youdao

Dr.Kausalya Pendyal tells her patients in Richmond, Virginia before they go outside to check the Air Quality Index - a U.S.government assessment of pollutants in the air.

VOA: standard.2010.08.04

The Environmental Protection Agency, together with other federal, state, local, and tribal agencies, developed AIRNow.gov, offering the public daily Air Quality Index forecasts and real-time Air Quality Index conditions for over 300 cities across the country as well as links to detailed state and local air quality cites.

WHITEHOUSE: Share This Post

The government's Air Quality Index shows "unhealthy" pollution levels in much of Southern California.

CNN: Smoke a serious health threat as wildfires spread

An unofficial reading from the US embassy's air quality index recorded over 500 early in the morning, but changed to 168 as of 13:00 (05:00 GMT).

BBC: Smog and sandstorm engulf China's capital