All the published moments of light minima of the near contact binary BF Vir have been compiled and the changes of orbital period have been analyzed.
收集了近相接双星BF Vir 的光极小时刻,并对其轨道周期进行分析。
Near Contact Binary(NCB) is a kind of close binary where both components fill or near fill their critical Roche Lobe.
这种独特的几何结构使近相接双星成为人们关注的一类天体系统。
Study on Photometry of the W UMa System V523 Cas
W UMa型相接双星V523 Cas测光研究
Observation and Study on over Contact Binaries in the Galactic Clusters;
银河星团中过相接双星的观测与研究
Observation and Study on Deep Low-mass Ratio Contact Binaries;
小质量比深度相接双星的观测与研究
Study on Photometry of the W UMa System V523 Cas
W UMa型相接双星V523 Cas测光研究
The Investigation of Physical Mechanisms for Orbital Period Changes of the Semidetached Binary UW Vir
半相接双星室女座UW轨道周期变化的物理机制研究
Six-phase winding, double star connection, ungrounded or grounded.
六相绕组，双星形连接，接地或不接地。
Six-phase winding, double star connection. Ungrounded or grounded can be specified.
六相绕组，双星形连接。可指定不接地或接地。
Photometric and Statistical Study of Near Contact Binaries;
近相接型密近双星的观测与统计研究
A binary star is a double star, consisting of two stars turning round each other.
双星是两颗星，是由相互围绕旋转的两颗星组成。
SAFUREX Double-phase Stainless Steel Bonding Technique
SAFUREX双相不锈钢焊接技术
Planetary nebulae are a type of isolated gaseous nebulae possessing a fair degree of bilateral symmetry.
行星状星云是一类孤立的气体星云，具有相当程度的双侧对称性。
south following star
东南星 -目视双星
north following star
东北星 -目视双星
Contact analysis of a new-style planetary reducer with a double crank and internal gear board
新型双曲柄内齿环行星减速器的接触分析
In contrast, the interstellar dust collected by Stardust comes directly from local interstellar space.
与之相反，星尘号收集的星际尘埃直接来自星际空间。
They had special receiving powers， not unlike a satellite receiving station.
他们有特殊的接收能力，这与卫星接收站相似。
Analysis on Several Wrong Coupling Line of Current Transformers Two Phase Star Coupling Method
电流互感器二相星形接法的几种错接线分析
photometric binary
光度双星 -即食双星
Welding Procedure Research on 2205 Duplex Stainless Steel Bimetal Pipe
2205双相不锈钢双金属复合管焊接工艺研究
