查询词典 manifold

Theorem 2 Let M~n be a compact totally real minimal submanifold in M~n which is a locally symmetric Bochner-Kaehler manifold.If the infimum of sectional curvature R_c in M~n satisfies: then M~n must be totally geodesic in M~n.

定理2 M~n是局部对称Bochner-Kaehler流形M~n中紧致全实极小子流形，如果M~n截面曲率下确界R_c满足：则M~n必是全测地的。

The basic theory and the latest research progress in this field are presented in this paper,and the further research directions in application of manifold PCM, studies on insulation properties of building envelope with PCM and inosculation of PCM and building material are pointed out.

维持室内温度在一定范围(24℃～28℃)内是保持室内环境舒适度的关键。随着季节的变化和昼夜的交替室外环境温度是不断地波动的，为了避免这种波动对室内环境舒适度的影响，人们常常利用空调和供暖系统，但相应的能耗随之增加，环境污染也随之加剧。

The invention is capable of increasing the air pressure in the air inlet manifold and improving the aeration coefficient in the cylinder while in instantaneous acceleration, thereby changing the combustion conditions of the internal combustion engine at a medium and low speed, resolving the problem of the poor accelerating performance of the turbocharger at the medium and low speed, improving the output torque at the medium and low speed, optimizing the accelerating performance and greatly shortening the acceleration response time of the automobile; moreover, because the fuel is fully burned, the utilization factor of the fuel is also improved and the discharge capacity of the internal combustion engine is reduced.

本发明能够增加进气歧管内的空气压力，提高加速瞬时缸内的充气系数，从而改变内燃机中低速的燃烧状况，并改变涡轮增压机中低速加速性能差的问题，提高中低速的输出扭矩，优化加速性能，使车辆的加速响应时间大大减短；同时，由于燃料获得了充分燃烧，也提高了燃料的利用率，降低了内燃机的排放量。

If the engine backfires, the sudden pressure in the intake manifold forces the valve back.

如果发动机回火，进气歧管骤增的压力就迫使阀门向后移动。

Nowadays, we are in a time full of manifold culture which is in intercommunication, intercommunication and integration.

当今时代是一个各种文化互动、交流、融合的时代。

Therefore, the non-manifold structure is defined by complex. This unifies wireframe, surface and solid modeling, and allows lamina face, lamina vertex and the internal structures of an object.

这样，采用复形方法定义了非流形结构，统一了线框造型、曲面造型、实体造型，容纳了悬面、悬边、悬点等情况及物体的内部结构。

Contemporary differential geometry is intrinsic , meaning that space is a manifold and structure is given by a Riemannian metric , or analogue, locally determining a geometry that is variable from point to point.

微分几何，这是简单的几何的曲率，已越来越重要，因为对数学物理的建议空间不是平坦的空间。

Invariant manifold theory is a part of this work.

不变流形理论是这项工作的一部分。

However, the theoretical approach and the computation algorithms used to design the Genesis trajectory are based on invariant manifold theory.

然而，理论的计算方法和算法来设计创世记轨迹是基于不变流形的理论。

The definition of the large range output regulation using the state feedback for the nonlinear system is given, and then the problem is discussed using the invariant manifold theory of the ordinary differential equation.

定义了非线性系统的状态反馈大范围输出调节，应用常微分方程的不变流形理论，给出了非线性系统状态反馈大范围输出调节问题可解的充要条件。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。