oriented sphere bundle是什么意思

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用法例句

In this thesis, we mainly study the relations between compact minimal hypersurfaces of S~(n+1)(1) and the Clifford minimal hypersurface of S~(n+1)(1) by their spectrums, and the relations between unit tangent sphere bundle T_1 M and its base manifold M.

在本文中,我们主要通过谱研究了S~(n+1)(1)中的紧致极小超曲面和S~(n+1)(1)中的Clifford极小超曲面之间的关系,以及单位切球丛T_1M与它的底流形M之间的关系。

The possible form of the total Stiefel-Whitney classes of vector bundles on RP(j)×CP(k) is determined in this paper.

本文利用Steenrod上同调运算及吴公式决定了RP(j)×CP(k)上的向量丛的全Stiefel-Whitney类的可能的形状。

In the present paper, we obtain some remarks on holomorphic vector bundles on some non-algebraic compact complex surfaces with odd first Betti number.

本文得到一些有关一类第一Betti数为奇数的曲面上的全纯向量丛的结果,以及例外Hopf曲面上的集合IS2(X,0)的描述。

By using some results on the existence of rank two special stable vector bundles over generic curves of genus 5, we give count-examples to show that both Maruyama s conjecture and Arrondo-Sols conjecture are false on generic curves of genus 5.

Ｆｅｉｂｅｒｇ证明的在 ｇ＝５的当 Ｓ（Ｅ）＜２时的一般代数曲线上二维特殊稳定向量丛的存在定理作为反例，说明进一步的Ｍａｒｕｙａｍａ猜想和Ａｒｒｏｎｄｏ－Ｓｏｌｓ猜想在ｇ＝５的一般代数曲线上均不能成立。

When is the Tangent Sphere Bundle with Arbitrary Constant Radius Einstein

何时任意常半径的切球丛是Einstein的(英文)

Isospectrum and Totally Umbilical of Submanifold and Remarks Unit Tangent Sphere Bundle;

子流形的等谱性和全脐性以及切球丛上的注

He scrabbled about in the bush for the ball.

他在灌木丛中爬着到处找球。

distinguished by leaves arranged in a dense rosette that develop into a compact ball.

有密集的球状叶子组成的莲座丛。

Geometry on the Unit Tangent Bundle T_1S～(2n+1);

球面上单位切丛T_1S～（2n+1）的几何

Studies on Multiplication of Dendrobium Hancockii Rofle protocorm and bud;

细叶石斛原球茎和丛生芽增殖的研究

A New Advance in the Research of the Globalization Theory--After Reading Book Series on Globalization;

全球化理论研究的新进展——读《全球化论丛》

The child's rubber ball punctured when it fell on a prickly bush.

那小孩的皮球落在带刺的树丛上时被戳破了。

small mild-flavored onion- or garlic-like clustered bulbs.

小的有适度气味的类似洋葱和大蒜的丛生球茎。

The drillmaster of the tennis ball said to his students:"If a tennis ball fell into grass, how will do?"

网球教练对学生说：“如果有一个网球掉进草丛里，应该如何找？”

The child’s rubber ball punctured when it felon a prickly bush

小孩的橡皮球掉到长有尖刺的灌木丛上被刺破了。

annual Old World plant with clusters of pink or white flowers; naturalized in United States.

一年生的东半球植物，有粉色或白色的花丛；移植到美国。

The lady next door scolded us for throwing the ball into her flowers.

隔壁的那位妇女怒骂我们把球扔到她的花丛中去。

A dense clump, especially of trees or bushes.

丛生植物、丛树密集的树丛或灌木丛

minor league teams play, metaphorically, "out in the bushes" away from big cities.

而小球联的队则在大城市外面的“灌木丛生的地方”打球，当然这只是个比喻。

a dense thicket of shrubs and small trees.

浓密的灌木丛和矮树丛

To extend in a bushy growth.

丛生象灌木丛一样延伸

To separate or form into tufts.

丛生分成或形成丛族