Moreover, the dopants with large molecule volume and high refractivity index will increase the Rayleigh scattering loss but improve the thermal stability of GI POF.

如果摻雜劑的分子體積大、分子折射率高国产黑丝自拍视频，則GI POF預(yù)制棒的瑞利散射損耗大久久国产片，但熱穩(wěn)定性能高。

On the special structure of the Lower Latitude Meridian Circle and the practice of determining astronomical refraction in Yunnan observatory,a new method for improving the correction accuracy of the atmo- spheric refraction delay is proposed:the determined data of the astronomical atmospheric refraction values with different azimuths are utilized to find the refractivity and the param- eters of mapping functions for modeling the atmospheric refraction delay correction,which changes with the observing stations and azimuths.

根據(jù)云南天文臺(tái)低緯子午環(huán)的特殊結(jié)構(gòu)毛片免费视频黄片A片免费，和測(cè)定大氣折射的實(shí)踐中文字幕无码综合HEYZO，提出了提高折射延遲改正精度的新方法，即：利用各觀測(cè)站不同方位從天頂附近直到低地平高度角的天文大氣折射實(shí)測(cè)數(shù)據(jù)久久99久久99久久这里只有精品资源，求解得到折射率差和映射函數(shù)的參數(shù)日韩A片视频免费观看，從而建立隨測(cè)站和隨方位而異的大氣折射延遲改正模型。