查询词典 A.N.

There was a 15~45 days lag phase of effect of soil N content on leaf N content.

土壤N素含量在叶片上的表现有15～45天的滞后期。

A Lie group,called N-group,and its Lie algebra,calledN-algebra,are introduced for the structure analysis of the systems.

同时为便于进行系统的结构分析，引入一种称为N-群的李群及其李代数，N-代数。

We consider Grassmann manifold G(2,8) as a submanifold of the unit sphere of /\2 which is the exterior vector space on Rn. Thus we have the induced metric and connection on G(2, n).

把Grassmann流形G（2，n）看作等距地嵌入在欧氏空间R~n上2-外向量空间∧~2中的单位球面上的子流形，得到它上面的度量和联络。

You can omit either m or n ; in that case, a reasonable value is assumed for the missing value.

你可以省略 m 或者 n ，当省略m时最小下限是0，省略n时最大上限是先前提到的20亿–相当于是无限大了。

Objective To study the efficacies of quadruple regimens for thetreatment of peptic ulcer disease and eradication of Helicobacter pylori.Methods 102patients with Hp associated peptic ulcer were randomly divided into three groups,groupA（n=98）received sanjiuweitai-based quadruple regimen（Yangweishul.2g,bid+ranitidine150mg,bid+amoxicillin500mg,bid+metronidazole400mg,bid）;group B（n=31）received colloidal bisˉmuth subcitrate110mg,bid+ranitidine150mg,bid+amoxicillin500mg,bid+metronidazole400mg,bid;groupC（n=23）received ranitidine150mg,bid+amoxicillin500mg,bid+metronidazole400mg,bid.Antibiotics were griven for two weeks,the other drugs were given for six weeks,the efficacies were determined by gastroendoscopy or 13 C—UBT.

目的 探讨四联疗法对消化性溃疡的治疗作用及根除幽门螺杆菌的效果方法将102例胃镜证实消化性溃疡者随机分为3组，A组48例给予养胃舒1.2g+雷尼替丁150mg+阿膜西林500mg+甲硝唑400mg，bid；B组31例给予铋剂220mg+雷尼替丁150mg+阿莫西林500mg+甲硝唑400mg，bid；对照组（C组，23例）给予雷尼替丁150mg+阿莫西林500mg+甲硝唑400mg，bid；以上药物除抗菌药物只服用2周外，其余药物服至6周末疗程结束，第7周复查胃镜和 13 C呼气试验。

Methods 102patients with Hp associated peptic ulcer were randomly divided into three groups,groupA（n=98）received sanjiuweitai-based quadruple regimen（Yangweishul.2g,bid+ranitidine150mg,bid+amoxicillin500mg,bid+metronidazole400mg,bid）;group B（n=31）received colloidal bisˉmuth subcitrate110mg,bid+ranitidine150mg,bid+amoxicillin500mg,bid+metronidazole400mg,bid;groupC（n=23）received ranitidine150mg,bid+amoxicillin500mg,bid+metronidazole400mg,bid.Antibiotics were griven for two weeks,the other drugs were given for six weeks,the efficacies were determined by gastroendoscopy or 13 C—UBT.

将102例胃镜证实为消化性溃疡者随机分为3组，A组48例给予养胃舒1.2g+雷尼替丁150mg+阿膜西林500mg+甲硝唑400mg，bid；B组31例给予铋剂220mg+雷尼替丁150mg+阿莫西林500mg+甲硝唑400mg，bid；对照组（C组，23例）给予雷尼替丁150mg+阿莫西林500mg+甲硝唑400mg，bid；以上药物除抗菌药物只服用2周外，其余药物服至6周末疗程结束，第7周复查胃镜和 13 C呼气试验。

Methods 102patients with Hp associated peptic ulcer were randomly divided into threegroups,groupA（n=98）receivedsanjiuweitai-basedquadrupleregimen（Yangweishul.2g,bid+ranitidine150mg,bid+amoxicillin500mg,bid+metronidazole400mg,bid）;group B（n=31）received colloidal bisˉmuth subcitrate110mg,bid+ranitidine150mg,bid+amoxicillin500mg,bid+metronidazole400mg,bid;groupC（n=23）receivedranitidine150mg,bid+amoxicillin500mg,bid+metronidazole400mg,bid.Antibiotics were griven for two weeks,the other drugs were given for six weeks,the efficacies were determined by gastroendoscopy or 13 C―UBT.

将102例胃镜证实为消化性溃疡者随机分为3组，A组48例给予养胃舒1.2g+雷尼替丁150mg+阿膜西林500mg+甲硝唑400mg，bid；B组31例给予铋剂220mg+雷尼替丁150mg+阿莫西林500mg+甲硝唑400mg，bid；对照组（C组，23例）给予雷尼替丁150mg+阿莫西林500mg+甲硝唑400mg，bid；以上药物除抗菌药物只服用2周外，其余药服至6周末疗程结束，第7周复查胃镜和 13 C呼气试验。

Set N be a maximal nilpotent subalgebra of D_n. In this paper, we determine all automorphisms of N.

在本文中我们将计算出这个极大幂零子代数N的所有自同构。

They are presented in need of special curves and surfaces in engineering applications. In order to prove that the uniform C-B-spline basis is normalized totally positive, we compute the matrix which transforms the C-Bézier basis into the uniform C-B-spline and decompose this matrix into a product of. bidiagonal and stochastic factors.

本文用递推的方法，计算出代数三角空间中的n次C-Bézier基与n次均匀C-B-spline基之间的转换矩阵，并把该矩阵分解为一系列二对角阵的乘积，从而证明出n次均匀C-B-spline基是一个标准全正基，进一步用插入节点的方法，把它扩充为一组标准B基，从而我们可以利用B基的很多优良性质，在工程应用中对这两组基进行开发利用。

Therefore, N-phosphoamino acids could be used as models in the study of reactions of the phosphoryl group in the life process.First of all, a series of model N-phosphpoamino acids were synthesized. And their ester exchange reaction on the phosphorous center was studied by ~(31)P NMR, HPLC, ESI-MS and ESI-MS/MS.

首先，本论文从氨基酸角度研究磷化学，合成了一系列模型化合物N-磷酰化氨基酸，利用~(31)P NMR技术研究了磷上酯交换反应，发现α-氨基酸对于磷原子存在着手性选择现象，并且这种手性选择的差异随α-氨基酸种类的不同也有所区别。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。