查询词典 momentum

In the teaching of central field, we should pay attention to turning the relative motion of two - body into one dimentuonal radial motion by introducing two physical concepts of reduced mass and effective potential energy, and we should also pay attention that the area law is the geometrical description of the conservation of angular momentum in the central field.

在有心力场教学中，应着重强调指出：通过引入折合质量和有效势能这两个物理量，把二体相对运动问题转化为单体沿径向的一维运动问题；以及面积定律是质心在有心力场中角动量守恒的几何描述。

However, the Big Bang does not explain many things, including the uneven distribution of matter that results in "voids" and "clumps," or the retrograde motion that must violate the Law of Conservation of Angular Momentum.

然而，大爆炸并不能解释许多事实，包括物质分配不均，结果造成一些"虚空"和"实体"；而且"逆行运动"必然违反角动量守恒定律。

And meanwhile, the conservation of mass, momentum and energy were discussed.

同时讨论此技术实施过程中伴随的质量、动量和能量守恒问题的解决办法。

The governing equations for the flow fields are conservation of mass and momentum equations.

但是，对诱导轮与首级叶轮之间的流动问题的深入探讨进行的不多。

This model couples the conservation of mass, momentum and species equations with transport equation in the membrane.

模型耦合了连续方程、动量守恒方程、物料守恒方程和水在质子交换膜中的传递方程。

The objective of this course is to introduce some fundamental concepts and solution methods of heat transfer considering the conservation of momentum , energy and mass.

高等传热学是一门理论基础课，为我院各专业后续相关专业课程学习及今后的研究工作打下坚实的理论基础。

This model couples the conservation of mass, momentum and species equations as well as water transport equation in the membrane.

刚ler研究了质子交换膜内水、温度和电流密度的分布。wangls和You[6] 分别对PEM燃料电池阴极内的汽液两相传质进行了不同侧重的研究。

In this paper, it includes several parts as follows: Based on the conservation laws of mass and momentum equilibrium in transient liquid pipe flow, the basic equations are introduced in detail.

本文主要从以下几个方面进行了研究：从连续介质理论的质量守恒和动量守恒原理出发，介绍液体管道瞬变分析的基本方程组即波动方程组的详细推导过程。

He developed the theory of rotational momentum and conservation of impulse.

他的理论旋转的势头和养护的冲动。

This is the well-known principle of conservation of momentum.

这就是众所周知的动量守恒定律。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。