Quantitative structure-activity relationship studies showed that when the test grass was rape, their herbicidal activity was mainly related with substituent molar refractivity; when the test grass was barnyard grass, their herbicidal activity was mainly related with the electronic parameters of the substituents at the para-position of benzene ring.

定量的結(jié)構與活性關系研究表明无码国产一区二区免费，當作用對象為油菜時，化合物的活性可能主要與取代基R的摩爾分子折射常數(shù)有關美女自慰喷水黄色网站；當作用對象為稗草時迷奷漂亮的女教师AV在线播放，化合物的活性可能主要與取代基R的電性參數(shù)有關。1-位為氫時三级片精品视频，有利于對油菜生長的抑制天堂网WWW在线资源中文；1-位為甲基時，有利于對稗草生長的抑制chaopeng97。

Taking the reflective phase hologram grating as an example, the spectral properties of the gratings were analyzed, for recording material with refractivity modulated in the convex curve and concave curve, by the coupled-wave theory.

以反射相位型全息光柵為例国产高清免费精品网站发国产女，用耦合波理論分析計算了記錄介質(zhì)折射率調(diào)制為上凸型和下凹型調(diào)制曲線的體全息圖的衍射光譜特性。

With a radiosonde sounding occuring within 2 hours and 300 km of the ROE as reference, errors are found in the refractivity profiles inverted by this paper and by CDAAC in LT.

以距離該掩星地點300 km以內(nèi)国产一级A片AV在线、觀測時間差異2 h以內(nèi)的無線電探空資料為參照欧美的视频，反演的折射率廓線與CDAAC的折射率廓線在低對流層都存在一定的誤差。

Scattering of radar -wave by flunctuations of atmospheric refractivity is studied in this paper.

研究大氣折射率起伏對雷達波的散射時一a级黄片免费看，得到的主要結(jié)果有以下兩點： 1欧美日韩草草影院在线观看。

Ok, let's get the refractivity working! Fig.10

好的，讓我們讓折射率起作用50熟妇。

Via calculation we find the contribution of the frequency in the vapor term to the refractivity can not be neglected.

計算發(fā)現(xiàn)毛片AA级高清免费视频，水氣項中的頻率改正對折射率差的貢獻是不可忽略的。

The impacts of the manufacture technology and dopants performance on refractivity distribution are studied systematically, which the refractivity distribution is measured by reflection.

預制棒的折射率分布決定著光纖的帶寬男人的天堂视频，因此預制棒折射率分布的控制與優(yōu)化是GI POF研究中的重要關鍵强奸乱伦AV片。

Based on the theoretical model of the optical and near-infrared wavelength refractivity which is recommended by the International Union of Geodesy and Geophysics's resolution in 1999, as well as, theory of Mendes(2004), we rededuce some theoretical formulae and give the practical expressions of hydrostatic and non-hydrostatic components of the refractivity.

本文基于國際大地測量與地球物理聯(lián)合會1999決議推薦的光學和近紅外波段的大氣折射率差理論模型，在Mendes（2004）理論的基礎上黄色网站黄色网址视频，對某些理論公式進行了重新推導中文字幕一级限制片，給出了大氣折射率差靜力學和非靜力學分量的實用表達式。

For the first time, connected the optical characters and its components and density of jadeite. The additivity of refractivity extend the application on single mineral to jadeite which with some components, and illuminates the refractivity should be increased while C〓 increased.

首次將翡翠的光學性質(zhì)與其成分欧美天欧美天堂aⅴ在线、密度等聯(lián)系起來亚洲欧洲综合无码一区二区，計算了翡翠中硬玉的理論折射率，折射率的加和性將適用于單礦物的理論推廣于具多種礦物組合的翡翠美国一级强奸片，推導了硬玉的折射率與晶體結(jié)構和原子結(jié)構的關系国产精品青草视频免费播放，指出C〓在晶體中含量的增加會引起折射率的增高。

Based on the data of 5 years in 1970s with duct present and those of December 1990, refractivity at height of 1 km, the average gradient of refractivity and surface refractivity are obtained by regression of the refractivity profiles to exponential models. And it is found that the constants in the exponential relation of refractivity of 1 km above ground and the mean vertical refractivity gradient in the first kilometer height with the surface value of refractivity are 110.6, 0.002 9 and -8.6, 0.004 7 respectively according the data of the 1970s?

對上世紀70年代中5年內(nèi)波導出現(xiàn)的數(shù)據(jù)和1990年12月份的全部數(shù)據(jù)的研究表明：貼地波導出現(xiàn)時永久黄网站色视频免费APP下载，它們的值及其和Ns指數(shù)關系的常數(shù)分別是110.6久久久久精品视频这里只有精品、0.002 9和-8.6、0.004 7免费观看国产黄页网站，地面上1 km處的折射率N1k及地面上第一公里內(nèi)的平均折射率梯度dN1和地面折射率Ns的相關性比沒有波導出現(xiàn)的情況好人人操人人莫人人干；而這兩者相比a级线手机免费观看，前者的結(jié)果又比后者好。