查询词典 conservation of momentum

It contains Euler equations for conservation of mass, momentum and energy, and Poisson equation through which the gravitational potential is determined by the density distribution of the gas itself.

它包括由质量守恒方程、动量守恒方程和能量守恒方程构成的Euler方程组以及由星体本身的密度分布决定的自引力势能所满足的Poisson方程。

In chapterⅣ, three problems in the velocity space are simulated numerically under the basic presumption that the distribution function is homogeneous in configuration space. The results of numerical simulations demonstrate that the conservation laws of momentum and energy are obeyed accurately.

第四章在"空间均匀分布"的前提下对三个速度空间中的问题作了数值模拟，数值模拟结果表明这种方法能够精确地保证动量及能量守恒。

To fill this gap, the enhanced Poincaré inequality was obtained by considering the additional conservation law of momentum and by rigorous estimate of integral inequality.

为解决这个差异，利用周期带域上的Eady模型的动量守衡的性质，通过变分方法和积分的精细估计，建立一个加强的Poincairé积分不等式，从而证明了Eady模型的线性稳定意味着非线性稳定。

Using the theory of detonation, the law of conservation of mass, momentum and energy, the physical and mathematical models of gas explosion in excavation roadway were set up, on the basis of which the condition and possibility of explosion were analyzed.

应用爆炸理论和质量、动量、能量守恒定律，针对掘进巷道瓦斯爆炸建立了物理模型和数学模型，在此基础上分析了掘进巷道瓦斯爆炸的条件和可能性。

The law of momentum conservation could supplant Newton's third law.

动量守恒定律可以取代牛顿第三定律。

Developments in physics since the time of Newton make the law of momentum conservation appear to be more fundamental than Newton's third law.

牛顿时代以来物理学的发展，使动量守恒定律显得比牛顿第三定律还重要。

We also show two approaches to determine outer sections of double-volute passage with the same flow rate: one is based on functions in foreign literatures; the other based on principle of conservation law of moment of momentum.

同时，介绍了双蜗壳外侧等流量断面的两种设计绘形方法，即基于国外统计资料的速度系数法和基于速度矩守恒原则的数字积分方法。

According to the moment of momentum conservation and force-balance, the algebraic equation is obtained to seek the solution of the orbital parameter s of the system after deployment and cut-off.

根据动量矩守恒和力平衡方程得到一代数方程，用于求解系统展开及剪断后的轨道参数。

Strictly speaking, the sumo wrestler will make a slightly louder sound because of momentum conservation, but the difference will be small, in spite of the fact that his arm may be 20 times heavier.

严格说来，因为动量守恒的原因，相扑选手会弹出稍大的音量，但这个差异非常小，虽然他的手臂应该比六岁小孩的手臂重20倍吧！

Both questions have troubled "two realm" philosophers—or dualists to give them their more usual name—, but the former has troubled them more, since modern physics is founded on principles that assert the conservation of various physical quantities. If a non-physical event causes a change in the physical world—dualists are repeatedly asked—, does that not imply that physical quantities like energy or momentum fail to be conserved in any physically closed causal system in which that change occurs?

所有这些问题困扰着二元论的哲学家，但是前一个问题更麻烦些，因为现代物理学坚持多种物理量的守恒原理，二元论者就会反复追问：如果一个非物理事件导致了物理世界的变化，那么，这不是就导出物理量不会守恒（而这是在物理上封闭的因果系统所会发生的）？

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷