这一指数是建立在描述人体和大气之间的湿热交换关系基础上的。
The index is grounded in established relationships describing the exchange of heat and moisture between the human body and the atmosphere.
美国海洋与大气管理局上周公布了温室气体年度指数的初步数据，其源数据来自包括齐柏林在内的全球60个观察点。
Last week, NOAA released preliminary figures for its annual greenhouse gas index, which incorporates data from 60 sites around the world - including Zeppelin.
水平方向上大气紫外透射比的指数衰减规律决定了系统工作的局域性和保密性。
Exponential attenuation of UV atmospheric transmittance for the horizontal paths decides that the UV communication system works locally and safely.
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