double-ring galaxy

Research on high precision common-view time service of double-star system;

双星系统高精度共视授时技术

This results in our simulated ring structure bearing closer resembIance to that of real ring galaxies than Toomre s simulation does.

通过数值模拟相互作用星系（包括靶星系和入侵星系）的碰撞，研究环星系的形成。

The supernova explosion disrupts the binary.

超新星爆发会瓦解双星系统。

Monte Carlo Simulations and Mass Ratio of Barium Stars;

双星系统的Monte-Carlo模型和质量比分布

Ambiguity Algorithm Based on Beidou Bi-Satellite System

基于北斗双星系统的模糊度求解算法

Deduction about Equations of Variation of Orbital Parameters in Detached Binary Systems;

分离双星系统轨道根数变化方程的推导

It's a binary- two neutron stars orbiting each other.

这是一个双星系统，也就是两颗互相围绕对方运转的中子星。

The nova phenomenon generally occurs in a binary system that has as one member a very hot white dwarf.

新星这种现象一般发生在双星系统中，其中一颗子星是非常热的白矮星。

In some binary star systems, gas escapes from one star and is captured by the gravity of the other to form a disk.

某些双星系统中，当从一个恒星逃出的气体被另一个星体的重力捕获时，也会形成盘状结构。

( Dwarf novae, explosions of light from the accretion disk around a white dwarf in a binary system, are examples of this phenomenon.

在双星系统中，环绕白矮星的吸积盘产生光爆而造成的矮新星，就是此现象的例子。

For example, some accretion disks in binary star systems occasionally undergo large, temporary increases in luminosity.

例如，有些双星系统里的吸积盘，偶尔会短暂地大幅增加亮度。

A binary system also allows the calculation of the black hole candidate's mass.

这种双星系统同样也能够对黑洞候选体进行质量计算。

The Research on DOP of Beidou Positioning System Using Pseudolite

基于伪卫星的北斗双星导航系统DOP值

Study and analysis on ephemeris error in double-star positioning system

双星定位系统中星历误差的分析与研究

Study on the Stability of Two Way Satellite Time and Frequency Transfer;

卫星双向时间比对系统稳定性的研究

Synthetical Error Analysis and Simulation for Double-Star Position System

双星定位系统的综合误差分析与仿真

Research on Double-satellite/Road Integrated Positioning Technique and Fast Orienting Technique Based on Double-satellite Positioning System;

双星/道路组合定位技术及基于双星定位系统的快速定向技术研究

According to the characteristic of Beidou double-star positing system( double-star positoin), this paper puts forward the optimal predication model of double-star position/ SINS integrated system.

根据北斗双星定位系统(称双星定位)特点,提出了北斗双星与SINS组合的最优预测模型。

Modeling and Accuracy Assessment on Missile-Borne SINS/Double-Satellite Integrated Navigation System;

弹载SINS/双星组合导航系统建模与仿真精度分析

Research and Design of Two-way VSAT Real-time Distance Learning System;

双向卫星实时远程教学系统的研究与设计