查询词典 boundary form

In the symplectic system of plane elasticity in rectangular coordinates, by separating variables and abandoning the homogeneous boundary condition, the symplectic solution of a rectangular beam subjected to distributed load in a power function form is obtained.

在弹性力学平面直角坐标辛体系中，采用分离变量法，放弃齐次边界条件，得到了矩形梁侧边受幂函数形式分布荷载问题的辛解答，给出了这类问题在辛体系中的一般解法，分别对矩形梁受法向和切向分布荷载的问题进行了求解，显示了此方法的有效性。

According to road designing data of mileage,coordinate,azimuth angle of tangent or straight line,curve radius,the length of spiral line from main point of curve or straight line starting point,we can calculate the coordinates of center line points and boundary line point s in any form of road under the same coordinate system.

根据线路设计资料提供的曲线主点里程、坐标、切线方位角、曲线半径、缓和曲线长度的已知数据，计算出任意线形的中桩、边桩在线路统一坐标系中的坐标，利用全站仪极坐标放样程序，以线路附近的控制点或加密点为测站，准确、快速放样各点。

A simple form of the unstable manifold s for the fixed points not being on the boundary;2. Aim To study singular points, closed orbits, stable manifolds and unstable manifold s of a second order autonomous Birkhoff system.

目的研究二阶Birkhoff自治系统的奇点、闭轨、稳定流形与不稳定流形，方法用常1微分方程的定性方法进行研究，结果与结论给出二阶Birkhoff自治系统的奇点判据、闭轨判据、双曲平衡点判据，得到与其相关的平衡稳定性、稳定流形与不稳定流形等。

It is exist that of a horizontal zonality of different types of ore deposit, namely: copper-- stibium,gold,fluorite-- troilite,clay-- iron-- manganese, It is proved by the studies of this project that boundary surface between Emeishan basalt and Maokou limestone in western Guizhou is a importent strata to form ore deposits It will be usefull for ore prospecting in future.

本项目论证了并提出了贵州西部峨眉山玄武岩与茅口灰岩的接触界面是一个重要的成矿与赋矿的层位，相信会对今后的找矿工作有一定的帮助。

On the other hand,un-der appropriate boundary conditions,multisymplectic methods also conserve thethe sum of symplectic form on discrete space,and this shows that multisymplec-tie methods is the gneralization of symplectic methods and describe the systemmore essentially.

另一方面，在适当的边界条件下，多辛算法也保持离散空间上的辛形式和，因而多辛算法是辛算法的发展，它更深刻地反映了系统的本质。

So called reservoir is physical or mathematical; for a physical system, the mathematical model is a system of partial differential equations with related initial and boundary value conditions, it can describe important physical process occurring in the system, for example, the process occurring in reservoir, which mainly concludes flow of fluids and transportation of mass, gravity、 viscosity、compressibility have effect to it; differential equations describing this process are obtained by combining Darcy law of every phase and its mass equilibrium in differential form.

这种模型是物理的或数学的；一个物理系统的数学模型，是偏微分方程组和适当的一组初、边值条件的总体，它能够描述在系统中发生的重要的物理过程，比如在油藏中发生的过程，主要是流体的流动和质量的转移，重力、粘滞力、压缩性等在流体流动过程中都是起作用的；描述这个过程的微分方程是由将各相达西定律和各该相的微分形式的物质守恒相结合而得到的。

A brief visual analytical form of temperature distribution on a finite double material irradiated by a continuous wave laser is presented under the third boundary condition in one dimensional heat conduction.

在一维热传导问题的第三类边界条件下，给出激光辐照有限厚双层材料Zn InP温度分布的一种直观简洁的解析形式。

A theoretical model was set up through introduction of moving heat source principle and a closed form analytical solution was obtained using Green's function under the third boundary condition.

在极端环境条件下，当温度低于低熔点金属的熔点时，低熔点金属或者合金可能发生凝固，这种情况不但使强化换热效果减弱，甚至可能恶化整个散热系统。

A river of central Africa rising in southeast Central African Republic and flowing about805 km(500 mi) generally west along the boundary with Zaire to merge with the Uele and form the Ubangi River.

波墨河非洲中部的一条河，发源于中非共和国的东南部，沿着扎伊尔的边界向西流径805公里（500英里）与约勒河汇合形成乌班吉河

In the earlier periods of last century, vertical integration is the main form of the firm vertical boundary.

在上个世纪的前半期，纵向一体化一直是企业纵向边界的主要形式。

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％。