本文计算了在增长的螺旋扰动引力场中恒星响应的非线性效应。
The nonlinear stellar response to the growing spiral gravitational disturbance is calculated.
对一种特定的扰动引力场模拟气体自引力，可以在速度平面上定性分析激波解的特性。
The features of shock wave can be analyzed qualitatively in the velocity plane for a special perturbed gravitation which is used to simulate the self-gravitation of interstellar gas.
本文用星际气体自引力星系激波来解释星系的螺旋结构、恒星的扰动引力场并非必要条件。
Tn this paper, the galactic spiral structure is studied by the galactic shock wave of interstellar gas with self-gravitation. The perturbed gravitation of stars is not ?
结果表明，文中提出的逼近算法能够快速精确可靠地逼近弹道扰动引力，是一种具有应用价值的方法。
Result indicates that, with this method the approximation of the disturbing gravity of trajectory can be completed fast and accurately and the application potential of this method is great.
仿真结果表明换极后的球谐函数计算扰动引力能够满足精度要求，且在计算中弹道方程的解算速度也有很大的提高。
The result of simulation indicates that this method not only satisfies the precision but also enables us to enhance the calculation speed of the trajectory equations.
文中运用了一种改进的球谐函数法，即换极法，大大简化了勒让德函数的递推计算，并进行了换极前后被动段扰动引力的仿真计算。
In this paper the improved method, also named transformation of the polar, is used to predigest the iterative calculation, and the simulation calculation has been progressed.
随着弹道导弹系统技术的不断改进，影响导弹精度的工具类误差已逐渐降低，地球重力场扰动引力已经成为影响导弹命中精度的主要因素。
With the improvement of ballistic missile system technology, the tool error affecting missile hitting accuracy has been reduced and disturbing gravitation has been a main factor.
来自这些凝聚的硬块所带来引力的扰动，反过来能够推动这些在早期所形成行星进入到更为靠近其母恒星的运行轨道上。
Gravitational perturbations from the clumps, in turn, can push the nascent planets into orbits closer to the parent star.
此次哈勃望远镜获得的图像给出了暗物质存在的进一步证据：那些未受扰动的矮星系正是被笼罩在暗物质“软垫”之中，保护了它们不受那些狂乱毗邻星系的引力影响。
The Hubble images provide further evidence that the undisturbed galaxies are enshrouded by a "cushion" of dark matter, which protects them from their rough-and-tumble neighbourhood.
行星越重，就越容易通过径向速度法侦测（本质上是行星引力对恒星的扰动）。
The more massive a planet, the easier it is to detect using radial velocity measurements (essentially the star's wobble as a planet's gravity tugs it).
在万有引力的作用下，小扰动会加强。
Under the action of universal gravitational forces the small perturbations will grow.
在万有引力的作用下，小扰动会加强。
在万有引力的作用下，小扰动会加强。
The act or process of moving under the influence of this attraction.
笔者指出，当入射引力波和高斯束不同频率时，高斯束谐振系统产生的一阶扰动光子流没有观测效应。
This paper points out that the first-order perturbation photon flux produced by this system has not observed effect when GWs is different from frequency of Gaussian beam.
本文通过空间扰动位协方差函数特性，得出卫星重力梯度数据与引力位系数的相关协方差函数。
Least Squares Collocation is used to educe the function that can directly compute gravitational potential coefficient by satellite gravity gradiometry data.
该方案给出了平面引力波通过同时存在高斯束和匀强静磁场背景区域的扰动解，并发现在同步谐振条件下可望得到可供观测的扰动光子流。
Such a scheme says that the resonance would occur when Gaussian beam, uniform static magnetic field and GWs exist in the same area and give detectable signal photon fluxes due to GWs.
该方案给出了平面引力波通过同时存在高斯束和匀强静磁场背景区域的扰动解，并发现在同步谐振条件下可望得到可供观测的扰动光子流。
Such a scheme says that the resonance would occur when Gaussian beam, uniform static magnetic field and GWs exist in the same area and give detectable signal photon fluxes due to GWs.
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