查询词典 perturbation

Namety, under the action of J2 perturbation, relative right ascending node, argument of perigee and mean anomaly of satellites formation will drift secularly.

首先，分析J2摄动对编队卫星相对轨道要素的影响，即J2摄动使相对升交点赤经、近地点辐角和平近点角产生长期漂移。

The quantitative relation between the phase perturbation of the fundamental field and tripling field has been studied in detail.

以Ⅰ/Ⅱ类角度失谐KDP晶体的高强度三次谐波转换为例，详细研究了三次谐波转换过程中，基频光和三倍频光的波前相位畸变之间的定量变化关系。

In this thesis, an unmagnetized, collisionless dusty plasma which consisted of extremely massive, highly negatively charged dust particles, ions and electrons are studied. Considering the effects of hot dust fluid with non-thermal ions and variable dust charge, we study the self-consisted system parameters on the structures of the dust-acoustic solitary waves by reductive perturbation methods.

本论文研究无磁化、无碰撞的、由大质量且带负电量的尘埃颗粒、电子和离子组成的尘埃等离子体，考虑尘埃流体的温度、非热离子和尘埃颗粒电荷绝热变化的因素，使用约化摄动方法研究这个自洽的系统的参数对尘埃声孤波结构的影响。

The security of several typical chaotic synchronized secure communication schemes , as well as the respective unmasking methods are studied to find the way to improve the security. A new secure communication scheme based on active-passive decomposition using parameters perturbation technique, which makes it has a kind of dynamic secrete key, is analyzed in this paper.

摘要在分析几种典型的混沌同步保密通信方案及针对混沌同步保密通信的分析破译方法的基础上，研究了一个新的基于Lorenz方程的主动一被动同步保密通信方案，其特点是具有动态密钥，从而对上述攻击方法具有抗破译能力。

The simulation results show that with the scheme, the influence of rolling angular velo city on command output can be moderated, and seeker antiˉperturbation is improved.

仿真 结果表明该方案可以降低滚动角速度对指令输出的影响，提高导引头隔离弹体扰动的能力。

Based on the perturbation theory,the influences of the Fermi resonance interaction between the two and three vibronic levels on the level energy,wavefunction,and the spectral line intensity are investigated in detail respectively.

本文考虑了分子振动非谐性所引起的振动能级之间的费米共振相互作用，利用定态微扰论，从理论上系统地分析了两态和三态之间的费米共振相互作用对能级能量、态函数和谱线强度的影响，在三阶非谐性近似下，得到了计及费米共振相互作用在内的能级能量、态函数和谱线强度的数学解析表达式。

The effects of WOB fluctuation of drill string on the wellbore trajectory are analyzed by using stochastic finite element method and perturbation equation.

借助随机有限元方法和摄动方程初步分析了钻压波动对井眼轨迹的影响。

When every nonlinear effect is processed as perturbation , they can be simply put in the equation altogether .

然后本文又继续讨论各种非线性效应在不同实际情况中影响的大小及对方程的简化。

The perturbation growth behavior in the high wave number band is opposite to that in the low wave number band.

高波数扰动的增长恰好与低波数相反。

Has-Beens. These angels take to wing with every perturbation in the economy.

曾经盛极一时的人——这种投资人希望跟风每一个经济领域的动乱。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。