查询词典 momentum

Drift electron mobility, the Hall factor and Hall mobility in GaN are calculated according to Mattiessen's rule as a function of temperature for carrier concentrations with the compensation ration as a parameter on the basis of taking into account the individual average scattering momentum relaxation time of four scattering mechanisms, namely, ionized impurity scattering, polar mode optical scattering, acoustic piezoelectric scattering and acoustic phonon deformation potential scattering which have an effect on electron mobility of GaN.

考虑了对纤锌矿型氮化镓低场电子输运影响最为显著的4种散射机制－电离杂质散射，极化光学波散射，声学波压电散射和声学声子形变势散射的单个平均动量驰豫时间，采用Mattiessen's rule计算了不同补偿率以及不同载流子浓度条件下，氮化镓电子漂移迁移率，霍耳因子以及霍耳迁移率随温度的变化。

The general forms of the conservation of momentum, t emperature and potential vorticity of coastal ocean are obtained in the xz pla ne for the nonlinear ocean circulation of Boussinesq fluid, and a elliptic type partial differential equations of second order are derived. Solution of the part ial differential equations are obtained under the conditions that the fluid move s along the topography.

在考虑了陆架地形后，在垂直海岸的xz剖面上，对Boussinesq流体的非线性海洋运动方程求得了总动量守恒、温度守恒和位势涡度守恒的普适形式，进而得到流函数所满足的椭圆型二阶偏微分方程，在给定流体沿地形运动的条件下，算出问题的解。

This we see ahead due to the momentum of light now beginning to emanate from Terra's core.

这是我们由于现在Terra的核心开始散发出的光之动力而看到的未来。

He was the trusted secretary and advisor of Alexander, and his name appears in the list of those who signed the encyclical letter subsequently issued by the primate and his colleagues to offset the growing prestige of the new teaching, and the momentum it was beginning to acquire from the ostentatious patronage extended to the deposed Arius by the Eusebian faction.

他是值得信赖的秘书和顾问亚历山大，和他的名字出现在名单上的那些签署了通谕信随后发出的灵长类和他的同事们，以弥补日益增加的威望提高，新的教学，势头，它已开始收购从排场载客量扩大到废黜arius由eusebian派系。

The momentum of the sun does not decrease with time as its energy content does.

太阳的动量并不像其能量值那样随着时间的推移而下降。

The metric variational energy momentum tensor and the Belinfante tensor is equivalent and gauge invariant.

如果经典的作用量在度规的表达变换下不变，那么能动张量的迹为零， g^{ab}T_{ab}=0

Radar, light, and other electromagnetic waves transfer momentum and energy through space.

雷达、光和其它形式的电磁波将其动量和能量通过空间输送出去。

And despite recent efforts to enshrine the doctrine of a "responsibility to protect" in international law, the concept of humanitarian intervention has lost momentum.

撇开近来在推行国际法中的人权保护法所做的努力，人道主义干涉的观念却已然失去了动力。

In fact, any 5-minute bar against early entry that is relatively large compared to previous bars which confirmed early entry will imply a shift in momentum and possibly early entry failure.

事实上，任何与早间进场信号振幅相反的大K线，都可能预示着转变的势头，并可能促使早间进场信号失败。

The subject matter of epical films have gradually expanded since the birth of sound film. Its groups of heroes, vast momentum and superb scenes make this form of art mature.

自从有声电影产生，史诗性电影的题材范围逐步扩大，英雄的群体，磅礴的气势，宏伟的结构，恢弘的场面等，使这一特殊门类的艺术臻于成熟。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐