principal normal bundle是什么意思

网络释义

用法例句

In this thesis,by the Albanese map and the theory of principal bundle,we prove that the compact smooth manifblds M~n(n≥4) with the first Betti number b_1=2 and largest symmetry must be diffeomorphic to either T~2 x S~(n-2) or T~2 x RP~(n-2).

在本论文中,我们利用Albanese映射和主丛的知识,证明了连通紧致流形在第一Betti数b_1=2和对称度达得最大值时,流形只有两种情况T~2×S~(n-2)和T~2×RP~(n-2),n≥4。

The cohomology group of holomorphic line bundles on Hopf manifolds;

Hopf流形上线丛的上同调群

,if it has a positive orbifold line bundle,then there exists a positive integer N,such that M can be embedded into CPN topologily.

证明了orbifold嵌入定理在高维的orbifold上成立,即对于一紧致复orbifoldM,若其上有一个正定的线丛,则存在正整数N使得M可以拓扑嵌入到CPN。

Relations between normal bundles and Flips of morphisms on projective manifolds;

射影流形上小收缩态射的翻转与法丛的关系

The master plots method along with a statistical procedure was employed to determine the kinetic model and kinetic parameters of the thermal decomposition process of stannous oxalate,which led to the produce of stannous oxide and conformed .

采用差示扫描量热法(DSC)研究了草酸亚锡的热分解过程,通过主曲线法并结合统计方法判定得到草酸亚锡热分解过程的动力学模型函数,求算得到了动力学参数。

Iso-conversional method was applied to estimate the apparent activation energy E_a,and the most probable mechanism function G(α) was determined by using the master plots method.

mol-1;用主曲线法确定了亮氨酸热失重过程的最可几机理函数G(α)为一维相边界反应函数,G(α)=α;再由Ea和G(α)求得指前因子ln(A/s-1)=23。

Also, the multi-heating rate method along with master plots method was employed to estimate the kinetic triplets of the thermal decomposition process.

采用热重法研究了水合草酸锌热分解反应过程,并通过多升温速率法和主曲线法相结合求算得到了水合草酸锌热分解反应两个过程的动力学三因子。

Main-Line-Method Teaching Method of Computer Network Course;

《计算机网络》课程“主线法”教学方法

(Z_2)～k-actions and Minimal Data of Normal Bundle;

（Z_2）～k作用与最小法丛信息量

Travel teaches you things that you can't learn from book.

旅游教会你一些无法丛书上学到的知识。

the law of the jungle

(弱肉强食的)丛林法则

Between Ethic and Law:Reappraising "The Law of the Jungle" of The Jungle Book by Rudyard Kipling;

伦理与法律之间——重评吉卜林《丛林之书》中的“丛林法律”

The stripe width field for this plex record cannot be read.

无法读取这个丛记录的带区宽度字段。

an indeterminate number of plant species in the jungle.

丛林中植物的物种数量无法确定。

The plex-column field for this subdisk record cannot be read.

无法读取这个子磁盘记录的丛-列字段。

The deer has gone past the tress;I cannot shoot at it at this distance.

鹿已跑过树丛，这个距离我无法射到它。

Reasearch on the Fiber Bundle Learning Algorithms Based on Manifold Learning;

基于流形学习的纤维丛学习算法研究

The Material Selection, Ordering and Valuation of Series of Wenzhou Literature;

《温州文献丛书》的选材、整理方法和价值

Primary Study on Multiple Shoots and Callus Induction of Paeonia lactiflora

芍药丛生芽及愈伤组织诱导方法初探

Advance of Cultural Methods for Arbuscular Mycorrhizal Fungi

丛枝菌根(AM)真菌扩繁方法的研究进展

A Study on Calendric System of the Hui Ethnic Minorities--A Comment on Collections Calendars of Chinese Ethnic Hui Minorities;

略谈回回历法研究——兼评《中国回回历法辑丛》

Objective To investigate the mechanism of treatment of acute cerebral infarction with nape cluster acupuncture.

目的探讨项丛刺疗法治疗急性脑梗死的机理。

The plex-offset field for this subdisk record cannot be read.

无法读取这个子磁盘记录的丛-偏移量字段。

Whatever else may be said, most people would agree “the law of the jungle”.

（例子）无论如何，大多数人都认同“丛林法则”。

A Study of the Stylistic Functions of the Syntax in the Beast in the Jungle and Its Translation;

《丛林猛兽》句法的文体功能及其翻译研究

Forensic Analysis on Injuries Involving Main Branches of Brachial Plexus in 66 Cases;

臂丛神经主要分支损伤法医学鉴定66例分析