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The use of the free undamped normal modes is seen to ensure that the linear and angular momenta of the distortional motion vanish.

看来采用自由无阻尼正规模态可保证变形运动的线动量和角动量为零。

An experiment on near threshold double ionization of helium impacted with 106 eV electron has been performed by using the newest developed reaction microscope. In this experiment the momenta of all products after double ionization of helium were measured and the five fold differential cross section was obtained for emitted electrons.

利用最新发展起来的适用于低能电子入射的反应显微成像谱仪，对电子轰击He原子近阈值的双电离过程进行了研究，实验测量了反应后4个粒子的全部动量，获得了五重微分截面及出射粒子间的关联信息。

The method is obtaining the ground state of the Hamiltonian which is constructed by general quadratic form of generalized coordinates and momenta.

方法是求得一维和二维以及n维由广义坐标和广义动量的一般二次型构成得哈密顿量的基态，由此可以求得各能级的本征态。

Green function defined inphase space differs from one in coordinate space by its struc-ture which exhibits nonlocatity in coordinates and oscillatorybehavior with respect to momenta.

在相空间中定义的Green函数不同于通常坐标空间的Green函数，在结构上显示出对坐标的高度非局域性，而对动量则显示出振荡行为。

These three - body coincident events were sorted as a function of the impact parameter using linear momentum transfer and total transverse momenta methods.

在前角测量了30MeV／u40Ar＋159Tb反应中两裂片符合下的轻粒子和复杂碎片，利用线性动量转移和总横向动量方法对三体符合事件进行了碰撞参数分类。

In the perturbation approach the ro-vibrational Hamiltonian is expanded in terms of the normal coordinates, their conjugate momenta, and the rotational momenta. The harmonic oscillator and rigid rotor wavefunctions are then used as the basis functions.

根据光谱理论，在谐振子和刚性转子的表象中，通过切变换导出一个等效的哈密顿量，考虑各种共振相互作用后，对角化哈密顿矩阵得到本征能量。

Gravitational violence during mergers mixes orbits and redistributes energies and angular momenta; the result is that quiescently formed systems such as disks are turned into ellipsoids.

合并期间引力作用混合了彼此的恒星并且重新分配了角动量；其结果是被迫合并的系统变成了椭圆星系。

The use of the free undamped normal modes is seen to ensure that the linear and angular momenta of the dis to rtional motion vanish.

看来采用自由无阻尼正规模态可保证变形运动的线动量和角动量为零。

For use in cosmogonical investigations,a detailed calculation of the angular momenta of various bodies in the solar system is made,making use of latest data.

任何有关太阳系起源的学说都必须能够说明太阳系角动量分布的特殊性，这种特殊性首先由傅歇于1884年指出来。

Show that the momenta , and must be in the same plane.

证明 ，，必须在同一平面。

If Pentium 4 used to be the master of all games built on Quake3 engine, now the situation has changed completely.

如果奔腾4使用的是掌握所有游戏建立在求苛刻的发动机，现在的情况已完全改变。

No, this is not what we mean by framing, although the principle is the same.

不，这不是我们所讲的框架的含义，尽管法则是一样的。