查询词典 manifold

Real space-time ; multivector ; algebra ; set pair analysis ; contact number ; spinor ; manifold

实空间；多重向量；代数；集对分析；联系数；旋量；流形

In addition nano - silica coating, the coating will aging properties, smoothness and intensity increased manifold.

在涂料中加入纳米SiO2，可使涂料的抗老化性能、光洁度及强度成倍地增加。

With a gradual contraction longitudinal straight inlet port applied on the Multi-Point Injection natural gas engine, the concentration of natural gas and the pressure field in the intake manifold after the injection of natural gas were investigated, then in the following intake process the volocity vector map and mass distribution of natural gas inside the cylinder were also numerically examined.

在此基础上，考察了渐缩形直进气道应用於多点电喷天然气发动时，天然气喷射后进气岐管内的天然气浓度场和压力场，以及随后天然气-空气混合气在气缸内的质理分布和速度分布。

As a result, by merely replacing the gasoline injector with natural gas injector, a large volume of natural gas is injected on the intake valve and then reflected, which makes the fuel concentration and pressure field in the intake manifold after the natural gas injection for the natural gas engine differ greatly from those for gasoline engine.

结果表明，若仅把MPI汽油机的喷油器用天然气喷射阀更换，大量的天然气喷到进气阀后反射，造成天然气发动机进气岐管内的燃料浓度场、压力场与MPI汽油机明显不同；并且进气阀被打开后，先期吸入气缸的天然气在纵向滚流的作用下被挤向进气阀底部下方，与后期吸入气缸的空气形成明显的分层充气构造。

To solve this problem,we present a method of self-intersecting manifold learning. The core of this method is to select neighborhood points based on tangent space clustering. We construct a layered neighbor-graph to storage the trusted information of low dimensional neighborhood.

为了解决这个问题，本文提出一种自相交流形学习算法，其核心内容是基于切空间分类的邻域选取方法，主要是通过逐步建立分层邻域图储存正确的邻域关系，以获取有效的局部低维结构。

The cause of bone marrow mecrosis is manifold and mainly related with neoplastic diseases.

引起骨髓坏死的原因是多种多样的，但最主要的原因是由恶性赘生性疾病引起。

The main results of the thesis are as follows: Theorem 1 M~is a locally symmetric Bochner-Kaehler manifold,Let M~n be a compact Kaehler submanifold with flat normal bundle in M~.

主要结果如下：定理1 M~是局部对称Bochner-Kaehler流形，设M~n是M~中法丛平坦的紧致Kaehler子流形。

The direction and stability of bifurcation are determined by the normal form theory and center manifold theorem. Results of some computer simulations are displayed graphically.

利用中心投影方法我们给出了分岔方向和稳定性的计算公式，并利用计算机对Neimark-Sacker-分岔进行了模拟验证。

Then we discuss the stabilities of other fixed points, and prove the conditions appeared Hopf bifurcation by the Center manifold theorem and normal form.

并且讨论了系统其他平衡点的稳定性，又利用中心流形定理和规范形证明了出现Hopf分支的条件。

Then the explicit algorithm is derived for determining the direction of the Hopf bifurcations and the stability of the bifurcating periodic solutions by using the normal form method and center manifold theorem.

然后，利用中心流形定理和正规型方法，给出了确定分支周期解的分支方向与稳定性的计算公式。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐