disturbing galaxy

The pseudo-spectra of waveform relaxation operators for ordinary differential equation systems are used,the spectra of perturbed systems are proved to be pseu-dospectra of matrix pencils.

利用常微分方程系統波形松弛算子的偽譜 ,證明擾動系統波形松弛算子的譜是矩陣束偽譜 ,并給出擾動系統的譜通常包含在未擾動系統的偽譜中 ,從而進一步證實了在非正規系統中偽譜確實是一個有用的科學計算工具。

This paper investigates relationships between spectra of waveform rela xation operators for nonnormal perturbed systems and pseudospectra of unperturbe d systems.

研究了非正規系統在擾動的情況下波形松弛算子的譜與未擾動系統的偽譜之間的關系,我們的研 究清楚地表明偽譜總比擾動后的譜包含更多的信息。

Associated with the variational systems of non-perturbation systems, a kind of almost periodic perturbation system with deviating argument is investigated by using the contraction mapping principle.

結合非擾動系統關于其概周期解的變分方程系,運用壓縮映射原理研究一類具有偏差變元概周期擾動系統的概周期解,獲得系統存在唯一概周期解的一組充分條件。

The study of an exponentially stable character of perturbed system at the point of equilibrium;

探討擾動系統在平衡點處指數的穩定性

On the least upper bound of the number of limit cycles of a class perturbed system;

一類擾動系統極限環個數的最小上界

We generalize the perturbed system for the case when the origin of normal system is exponential stable .

主要討論了一類擾動系統的指數穩定性問題 。

Effects of the Interplanetary Disturbances on Geomagnetic Storm Development

行星際擾動對地磁暴發展的影響研究

Statistical Analysis and Simulation Study on Interplanetary Disturbances and Their Geoeffectiveness

行星際擾動與對地效應的統計分析和模式研究

Possibility of Triggering the Geomagnetic Disturbances by the IMF Northward Bz Component

行星際磁場北向分量觸發磁層擾動的可能性

theory of the motion of interplanetary vehicle

行星際飛行器運動理論

The possibility of triggering the geomagnetic disturbances by the northward Bz component of the IMF is discussed using some typical events and statistical analyses.

本文用典型事件和統計分析論證了行星際磁場北向分量觸發地磁擾動的可能性.

South Tropical Disturbance

南熱帶擾動 -木星

planetary and interplanetary probe

行星和行星際探測器

Security - Safeguarding International Civil Aviation against Acts of Unlawful Interference

安全-保障國際民用航空免受非法行動干擾

International Interplanetary Space Travel Research Association

國際星際航行研究協會

an interplanetary journey in a space ship

乘太空船作星際旅行

Variation in a designated orbit, as of a planet, resulting from the influence of one or more external bodies.

微擾，攝動在固定軌道中的變化，如行星，由一個或多個外部物體的影響引起

But a national campaign among the fans of the star Trek television show,

但是電視節目《星際旅行》的狂熱愛好者們發起了一項全國性的運動，

Interaction between interplanetary shock and corotating high speed stream studied by a 3-D kinematic method

用三維運動學模型研究行星際激波與共轉高速流的相互作用

Establishment of Simulation Software to Jam The Up-link Signal of SATCOM

對衛星通信上行信號干擾仿真軟件的建立

Research on Active Disturbance Rejection Control in Attitude System of Magnetic Satellite;

主動磁控小衛星自抗擾姿態控制系統研究

Analysis and Investigation of the Interference from the Mobile Satellite Service to the Fixed Service

衛星移動業務對固定業務的干擾分析研究

New Blind Interference Suppression Method for CDMA Mobile Satellite Communication Systems

CDMA衛星移動通信系統中的盲干擾抑制新方法

Characteristics of the Propagation and Evolution of Interplanetary Coronal Mass Ejections in the Heliosphere;

行星際日冕物質拋射在行星際空間的傳播和演化規律