查询词典 angular derivative

Chapter 3 studies the compactness of product operators of a composition operator C〓 with the adjoint C〓 of another composition operator C〓 on weighted Bergman spaces A〓. We give some conditions in terms of angular derivatives of the inducing maps ψ and ψ for the operator C〓C〓 or C〓C〓 to be compact.

第三章研究了加权Bergman空间上的一个复合算子C〓与另一个复合算子C〓的共轭算子C〓的乘积C〓C〓与C〓C〓的紧性问题，我们用φ与ψ在〓D上的角导数的某种关系给出了C〓C〓与C〓C〓在A〓上为紧算子的一些判据。

That's over a ton, and seems very heavy for a 40 HP engine In the compound design, the two rotor assemblies were staggered in angular alignment to smooth out the torque delivery.

也就是超过1吨，和似乎非常繁忙，为一个40马力发动机）在该化合物的设计，两个转子集会错开，角对齐，以理顺扭矩交付。

Then in the light of the corresponding angular relations all singularity points of configuration space of the mechanism were found.

再根据相应的角度关系，求出机构的全部位形空间的奇异点。

The conservation of angular momentum takes exactly the same form and has the same significance in both domains.

角动量守恒在两种领域中形式完全相同，并且有同样的重要性。

The conservation of energy and angular momentum of the model is tested.

通过引入β平面近似，半地转近似，引入适合的加热场的参数化方案，在气压梯度力的描写中引进静力扣除方案，建立了低纬度大气大尺度定常运动模式，证明了模式的能量和角动量守恒性质。

As it contracts, the principle of angular momentum conservation forces it to rotate faster .

当它收缩时，角动量守恒的原理强迫它转得更快（见右页〈气体盘的诞生〉）。

Starting from the conditions of law of conservation of energy and angular momentum,how to deal with simple disposal of several physical equations of the planetary motion by applying the elementary mathematical equations is proposed.

从角动量和能量守恒定律出发，建立行星椭圆运动的轨道方程，导出行星运动时的各个物理量表达式，从而给出了一种以初等数学为基础的处理行星运动的简洁方法。

Considering enough first integrals,such as conservation of energy and angular momentum,the system is integrable by Liouville's theorem.

利用能量积分，根据惠特克定理对系统的动力学方程进行降阶，并根据旋转数给出系统作周期或准周期运动的判别条件。

Firstly, the development of the spherical robot is introduced and according to the knowledge of the research forepassed, the nonholonomy and the nonlinear controllability for a spherical robot based on the principle of angular momentum conservation are discussed with the differential geometric control theory.

首先介绍了球形机器人的发展状况，在了解前人研究领域的基础上，应用微分几何控制理论，对此角动量守恒的球形机器人的非完整性和非线性可控性进行了研究。

The law of conservation of angular momentum may be demonstrated with a gyroscope.

角动量守恒定律，可以用回转器来演示。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。