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In this paper we will mainly study the gauge fixing Yang-Mills heat flow of a principal bundle For a principle bundle with a compact seme-simple Lie group as its structure group over a compact Riemannian manifold without boundary, the evolutions of the curvature and its higher derivatives under the flow above will be derived, and the energy inequality and the Bochner type estimates will be obtained.

中文摘要：本论文主要讨论主丛上的规范固定Yang-Mills热流我们在紧致无边黎曼流形上的以半单紧致李群为结构群的主丛上，推导了在规范固定Yang-Mills热流下曲率及其高阶导数的演化方程，得到了该热流的能量不等式和Bochner估计，由此可推出单调性公式和小作用量正则性，以及曲率各阶导数的局部一致估计。

In this paper we will mainly study the gauge fixing Yang-Mills heat flow of a principal bundleFor a principle bundle with a compact seme-simple Lie group as its structure group over a compact Riemannian manifold without boundary, the evolutions of the curvature and its higher derivatives under the flow above will be derived, and the energy inequality and the Bochner type estimates will be obtained. Then, the monotonicity formula and the small action regularity theorem can be proved. We will give the locally uniform estimates for the higher derivatives of the curvature.

本论文主要讨论主丛上的规范固定Yang-Mills热流我们在紧致无边黎曼流形上的以半单紧致李群为结构群的主丛上，推导了在规范固定Yang-Mills热流下曲率及其高阶导数的演化方程，得到了该热流的能量不等式和Bochner估计，由此可推出单调性公式和小作用量正则性，以及曲率各阶导数的局部一致估计。

The properties of the yarn structure and its fabric style produced by compact spinning and traditional ring spinning are com- pared through experiments by use of microphotograph and fabric style tester and related effective factors are also analyzed, thus provided some basis for compact spinning product development and positioning.

通过采用视频显微镜和织物风格仪等进行的实验，研究比较了紧密纺和传统环锭纺纱线的结构和织物风格特点，并分析了相关的影响因素，为紧密纺的产品定位和产品开发提供了依据。

In 1986, H. Gauchman proved another famous rigidity theorem for compact minimal submanifolds in a sphere: Let M be an n-dimensional compact minimal subman-ifold in S~(1), if σ≤ 1/3 holds for any unit vector u ∈ UM, then either σ≡ 0, i.e..

若对任意单位切向量u∈UM，有σ≤1／3，其中σ=‖h‖~2，则σ≡0，即M是全测地子流形；或者σ≡1／3，并且要完全确定这类极小子流形的几何结构。

For compact hypersurfaces and highcodimension compact submanifolds initial data respectively, we prove that the flow hasa smooth solution for all time under almost optimal conditions. Those conditions arethat the second fundamental form on the initial submanifolds is not too large, the exter-nal force field, with its any order derivatives, is bounded, and the field is convex with itseigenvalues satisfying a pinch inequality.

我们分别对紧超曲面初值和高余维紧子流形初值证明了当初始曲率比较小，并且外力场除了要各阶导数一致有界外，还要满足凸性条件以及特征值的一个pinch条件时，这种热流的光滑解长时间存在。

Through the reaseach about process make clear: Compacting slowly and equally as common single-action pressing, also can produce good anvil compact. Pattern about ejection process gradually with 0.5mm/sec and top punch hold down can avoid compact crack by spring back.

工艺研究表明：普通单向压制时缓慢而匀速地加压，可制备出质量较好的顶锤压坯，在脱模时以预负荷和≤0.5毫米/秒的渐开模方式可避免弹性后效造成压坯裂纹。

We avoid of assuming that the interior of the ordering cone is not empty and the cone has a compact base or a weakly compact base, but consider Benson proper efficiency in the framework of sparable locally convex metric spaces.

本文回避了以往需要序锥内部非空并且有紧基或弱紧基的条件，转而把目光从局部凸拓扑向量空间投向可分局部凸距离空间，在这个框架下，先利用Polarity定理给出了Benson真有效点的标量化定理。

Several profile suction pipes with different double slots are developed and applied to spin cotton yarns of same fineness. Though comparing the structure and performance of this cotton yarn with that of yarns by the compact spinning or the Siro spinning, the advantages of compact Siro spinning are further indicated.

用自行研制的具有不同吸风双槽的紧密赛络纺吸风管分别纺制相同线密度的棉纱，并与相同工艺条件下的紧密纺和赛络纺纱线就纱线结构与性能进行比较分析，进一步说明紧密赛络纺纱工艺的优越性。

In the course of the extension of subsoiling mini-till,small shar-ed subsoiler is screened from 8 kinds of tillage practices to carry outshallow plowing and interval subsoiling,shallow plowing is 7-8 cmdeep.and at the interval of 35 cm,the subsoiling is 20-35cm deep.Thus,the co-exitence of loose and compact tilths is created(ratiobetween the loose and compact tilths is 3:4).Owing to the unchan-ge of surface soil position,water,fertilizer,aeration and heat are incoordination,and yield increase is stable.when...

在试验推广深松少耕法的过程中，从八种耕作措施中筛选出用小铧杆尺深松犁，进行浅翻间隔深松，浅翻7—8厘米，间隔35厘米，深松20—35厘米，创造的虚实并存的耕层(虚实比8∶4)，由于表土位置不变，水、肥、气、热协调，增产效果稳定，种小麦、大豆平均增产分别为21.6%和15.5%；而且还有节省油料、降低成本，不用大量增添新的耕作机具的优点，并具有明显的抗旱、抗涝、防止土壤风蚀、水蚀的结果。

We examine the super compact symmetric finite difference scheme and compare it with traditional difference methods and compact difference methods.

0引言在流体动力学领域，很多物理现象，如湍流，其空间和时间的尺度变化剧烈，要正确模拟这类问题需要高精度方法。

Salt is good, but if the salt becomes flat and tasteless, with what do you season it?

14：33 盐本是好的，盐若失了味，可用什么叫它再咸呢？

He reiterated that the PLA is an army of the people under the leadership of the Communist Party of China.

他重申，人民解放军是在中国共产党领导下的人民军队。