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From this basis, using visible channel data of GMS5 to calculate the surface albedo for the Beijing area.

在得到大气气溶胶的相函数和光学厚度的基础上,用GMS-5 气象卫星可见光通道的资料求出了北京地区可见光波段的地面反照率。

We investigated constituent of triterpenoid saponins ofAlbizzia, two new compounds together with two known compounds were isolated from Albizzia julibrissin Durazz. by using column chromatography (macroreticular resin, silica gel, Sephadex gel, reverse phase silica gel),preparative HPLC methods et al.On the basis of spectroscopic analysis, including IR,ESI-MS,~1H-NMR,~(13)C-NMR,HMBC,HMQC,~1H-~1HCOSY and chemical methods, the structure of two new compounds were identified as 3 - O -[β-D-xylopyranosyl(1→2)-β-D-fucopyranosyl (1→6)-β- D -2- deoxy - 2 - acetoamidoglucopyranosyl] -21-O-[(6S)-2- trans- 2,6-dimethyl - 6 - O-β- D - quinovopyranosyl -2,7- octadienoyl] - acacic acid- 28 - O-β-D-glucopyranosyl(1→3)[α-L-arabinofuranosyl(1→4)]-α-L-rhamnopyranosyl(1→2)-β-D-glucopyranoside acacic acid 3- O -β- D- glucopyranosy(1→3)-β- D- fucopyranosl(1→6) [β-D- xylopyranosyl (1→2)]-β-D-glucopyranoside ;two known compounds were acacic acid lactone 3- O -β-D- xylopyranosyl-(1→2)-β-D-fucopyranosl (1→6)- 2-deoxy -2 -acetoamido -β-D- glucopyranoside ; acacic acid lactone 3- O-β-D-xylopyranosyl(1→2)-α-L- arabinopyranosl (1→6)- 2- deoxy - 2- acetoamido -β-D-glucopyranoside . The study lays chemical foundation and chemical reference substance for enhancing quality standard of Albizzia julibrissin Durazz.

本研究论文在综述国内外对合欢属Albizzia三萜皂苷化学成分和药理作用研究进展的基础上,利用传统植化分离手段和现代分离技术,包括大孔树脂、硅胶、葡聚糖凝胶、反相硅胶等柱色谱,制备高效液相色谱法等技术从中药合欢皮中分离得到了4个化合物,其中,2个新化合物和2个己知化合物,并进一步通过现代分析技术IR,ESI-MS,~1H-NMR,~(13C-NMR,HMBC,HMQC,~1H-~1HCOSY等和化学方法鉴定了2个新化合物的结构分别是:3-O-[β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖基]-21-O-[(6S)-2-反式-2,6-二甲基-6-O-β-D-吡喃鸡纳糖基-2,7-辛二烯酸基]-金合欢酸-28-O-α-L-呋喃阿拉伯糖基(1→4)[β-D-吡喃葡萄糖基(1→3)]-α-L-吡喃鼠李糖基(1→2)-β-D-吡喃葡萄糖苷,金合欢酸3-O-β-D-吡喃葡萄糖基(1→3)-β-D-吡喃夫糖基(1→6)[β-D-吡喃木糖基(1→2)]-β-D-吡喃葡萄糖苷;2个已知化合物结构分别是:金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-β-D-吡喃夫糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷,金和欢酸内酯3-O-β-D-吡喃木糖基(1→2)-α-L-吡喃阿拉伯糖基(1→6)-β-D-2-去氧-2-乙酰氨基吡喃葡萄糖苷。

Methods Fourty male Wistar rats were randomly divided into four groups on the basis of body weight: control group, low, moderate and high alcohol group.

清洁级雄性Wistar大鼠40只,按体重随机分为对照组和低、中、高酒精剂量组,每天分别给予0,0.8,1.6和2.4g/的酒精灌胃。

This analysis is performed on the basis of about 1.36 millionhadronic events collected by ALEPH detector at the 〓 pole. The resultis

本工作的分析是基于ALEPH探测器在〓峰上收集到的136万强子事例,结果是

On the basis of it ,the function of obstacle's diagnose、giving alert、black box and electronic manual are achieved.

在本文中,我们确定了硬件设计方案,选择了适用的CPU以及其他相关的外围设备,如FLASH芯片等。

The purpose was to provide theoretical basis for exploitation and use of Alfalfa.

[目的]为苜蓿的深度开发利用提供理论依据。

In this paper,some problems on bivariate Hermite interpolation by polynomial are studied.The concepts of strong H-basis and Hermite interpolation along a plane algebraic curve are proposed.

1引言如所知,光滑函数方法被广泛地应用于计算机辅助几何设计,有限元及散乱数据插值与拟合(Scattered data fitting and interpolation)等领域·在应用该方法过程中,有关光滑或Hermite插值格式及其显式表达式问题的研究是至关重要的一个方面。

At the same time,since the algebraic geometry theory and method during the past few years have unceasingly developed and improved,we have forceful theory basis and new method to further research the problem of multivariate interpolation.

同时,由于近年来代数几何理论与方法的不断发展和完善,又为多元插值问题的进一步研究提供了强有力的理论依据和全新的研究方法。

At the same time, since the algebraic geometry theoryand method during the past few years have unceasingly developed andimproved, we have forceful theory basis and new method to further re-search the problem of multivariate interpolation.

同时,由于近年来代数几何理论与方法的不断发展和完善,又为多元插值问题的进一步研究提供了强有力的理论依据和全新的研究方法。

Online regulator design can be easily realized, as only algebraic operation is needed in the provided method. This sets up a theoretical basis for using self-tuning regulator to handle the problem of system parameter variation.

这种调节器设计方法只包括代数运算,适于在线实现,为采用自校正调节器控制,抑制系统参数扰动奠定了理论基础。

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相关中文对照歌词
The People That Surround You On A Regular Basis
推荐网络例句

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石!

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻,也许正是在通往天国的路上,我体验着这白色的晕旋。

When you click Save, you save the file to the host′s hard disk or server, not to your own machine.

单击"保存"会将文件保存到主持人的硬盘或服务器上,而不是您自己的计算机上。