动量

The neutrino was first postulated in 1930 by Wolfgang Pauli to preserve the conservation of energy, conservation of momentum, and conservation of angular momentum in beta decay—the decay of an atomic nucleus into a proton, an electron and an antineutrino.

中微子是1930年由沃尔夫冈泡利为了保持能量守恒，动量守恒和β衰变---一个原子核（那时还没有认识到是中子）衰变成一个质子、一个电子和一个反中微子的角动量守恒，。

Examples are industrial discharge such as brine, living sewage disposal, cooling water of power plant which is discharged to the river, dust or waste hot gas which is let to the atmosphere from chimney and cooling tower, and bilge water which is released to the port water area.

当废水或废气排放到环境流体中时，废流体的密度往往与环境流体的密度不同，这种由于密度差而产生的浮力不仅影响平均流本身，而且更主要的影响湍流及受湍流影响的动量、热量和质量的交换。

The coal particles with bimodal distribution were considered as two solid phase components and the momentum exchange between solid and liquid as well as between solid and solid are accounted for.

将具有双峰分布特性的煤粉颗粒看作直径不同的 2 种固相，同时考虑固相与液相、固相与固相之间的动量交换。

The rotational jet and local oxygen enrichment can improve the mixing of oxygen and pulverized coal, but the effect of coal injection is weak on the whole flow field in blowpipe. The mass and momentum transfer near the exit of lance are very strong.

结果表明，氧-煤喷枪的漩流、富氧率等仅在氧枪出口的有限区域内对流场有较大的影响；喷煤对整个直吹管内的流场影响较小，但在氧-煤喷枪出口附近区域会促使气相和煤粉激烈混合，动量和质量传输较强烈。

Based on the Boltzmann equation, governing equations are obtained by microscopic kinetic theory, in which the terms for mass and momentum transportations can be obtained directly by introducing some conclusions of bubble dynamics.

在推导过程中，结合空泡动力学中的研究成果，从微观角度考虑了泡径变化引起的质量和动量输运，直接推导出了相间输运源项。

Based on the quality, momentum, and energy conservation laws and the state equation, considering the momentum loss of gas column flowing and the complicated thermal conduction mechanism in the bore-hole and formation, the pressure and temperature calculating method is derived for single-phase gas flow in different positions of the bore-hole.

文章以质量、动量和能量三大守恒方程和状态方程为基础，考虑了流动气柱的动能损失以及井筒和地层中复杂的传热机理，推导出计算单相气流在井筒不同部位压力和温度的方法。

Through comparing the Ar (e,3e) double ionization experimental results at low collision energy with the theoretical calculation based on the first Born approximation which include the first order mechanisms SO and TS1, the symmetry breaking about the direction of the momentum transfer shows that the non-first order effects (such as two-step 2 mechanism) play an important role.

通过比较Ar在低碰撞能量下的(e ，3e)双电离实验结果和基于包含一次作用机制SO和TS1的一阶波恩近似的理论计算结果，表明在动量转移方向上对称性的破坏显示非一次效应(例如二型两步作用机制)起非常重要的作用。

Using the calculation formula of reflection ecergy, transmissin energy and incidence energy and equivalent principle of electric signal received by detector and seismic wave energy reflected by underground lithologic boundary, the formula of interval velocity and strata density are derived.

根据运动学中的动量守恒定律、分析地震勘探过程中地震波在地下介质中的传播过程，利用反射能量、透射能量与入射能量的计算公式和检波器转化的电信号与地下密度界面反射地震波波动能量的效原理，推导出直接求层速度和层密度公式。

Based on momentum theory and shock wave gas dynamic theory, jet equivalent body idea and bow sharp wave mathematic formula is brought forward.

利用动量定理和激波理论分析方法，提出了喷流等效体的概念，推导了等效体弓形激波方程。

This research culminated in the de Broglie hypothesis stating that any moving particle or object had an associated wave.

存在相位波是物体的能量和动量同时满足量子条件和相对论关系的必然结果。

It is also known as one of the most poisonous naturally occurring substances.

它也被称为一个最自然发生的有毒物质。

The greatest stress is found at the location on the cross section where V is the largest.

最大应力出现在横截面上V为最大的地方。