查询词典 boundary line

It is proved that any n-dimensional(n≥4)compact manifold with totally geodesic boundary which satisfies a pinching condition can be deformed to a space form with totally geodesic boundary.

证明了对于任意一个具有全测地边界的n维紧致流形(n≥4)满足一定的拼挤条件可以形变为具有全测地边界的空间形式。

The existence of solutions for two-point boundary value problem subject to nonlinear second order differential equation with mixed boundary conditions is studied by using topological transversality theorem, and some known results are improved.

现利用拓扑横截定理，考虑了二阶常微分方程两点边值问题在组合边界条件下的解的存在性，对二阶常微分方程两点边值问题所对应的辅助问题作先验界估计，并利用拓扑横截定理，得到了边值问题解的存在性，推广了一些已有结果。

The broad symbolic significance of the trefoil knot is: science has no national boundary; interdisciplinary study has no boundary; science requires communication among countries; science and art are closely linked.

三叶纽结的广义象征意义是：科学没有国界，各学科之间没有边界，科学是相互连通的，科学与艺术是相互连通的。

The fracture mechanism of totally austenite TWIP steel (steel 5#) is: the moving of dislocations is blocked by twin boundary during deformation. Micro-voids nucleate at boundary of deformation twins by the interaction between deformation twins and dislocations. Micro-voids are formation, growth, coalescence and break by the stress concentration during deformation.

全奥氏体的TWIP钢（如5＃钢）的断裂机制为：形变过程中位错的运动受孪晶界的阻碍，形变孪晶与位错的交互作用使微孔形核于孪晶界处，应力集中使微孔长大、聚合直至材料发生断裂。

The fracture mechanism of the whole austenite TWIP steel (steel 5#) was that the moving of dislocations was blocked by twin boundary during deformation, the microvoids nucleated at boundary of deformed twins by the interaction between deformed twins and dislocations, the microvoids grew, got together and broke by the stress concentration during deformation.

全奥氏体的TWIP钢（2＃钢）的断裂机制为：形变过程中位错的运动受孪晶界的阻碍，形变孪晶与位错的交互作用使微孔形核于孪晶界处，应力集中使微孔长大、聚合直至材料发生断裂。

Experiment of convective drying of wet quartz sands as porous media, which had adiabatic-impermeable boundary of undersurface and convective boundary of upside, was carried out in laboratory.

本文以上边界对流传热传质边界和下边界绝热绝湿边界的含湿石英砂填充床为实验对象，进行了对流干燥实验。

As a limited domain is concerned, since the boundary condition limits the uniqueness of the solution of stream function, velocity potential and the partition of wind field, it is important to reduce or eliminate the effect of boundary condition uncertainty.

所以减小或消除边界的不确定对结果的影响是有限区域流函数和速度势计算及风场分解最重要的问题。

By using this method, the boundary value problem of vector wave equation can be transformed Into two independent boundary value problems of scalar wave equations and other two additional vector differentia! operations.

用这种方法可以很方便地求解所有现在用并矢格林函数的本征展开法所能求得的各种并矢格林函数。

The use of an efficient adaptive absorbing boundary condition, which is concluded from Z transform absorbing boundary condition, further improved the accuracy of the calculated propagation constants.

基于大量精确的计算结果，本文总结出了一些实用的设计曲线和两个计算基片集成波导传播常数的经验公式。

From bottom to top, a complete terrigeous sequence in fault-depressed lacustrine basin consists of the following sequence units in turn: Sequence Boundary→Lowstand System Tract (no coast-onlap)→Trangressive System Tract (distinct coast-onlap)→Highstand System Tract being composed aggradational lacustrine mudstone with low sedimentation rate→Regressive System Tract (distinct coast-dropback)→Sequence Boundary.

断陷湖盆中一个完整的陆相层序自下而上依次由下列层序单元构成；层序界面→无湖岸上超的低水位体系域→湖岸显著上超的水进体系域→由沉积速率缓慢的垂向加积型湖相泥质岩构成的高水位体系域→湖岸显著退却的水退体系域→层序界面。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。