This paper presents the result of UBV photoelectric photometry of the 1976-1978 eclipse of VV Cephei.

A comparison between two different theoretical approaches to the β Cephei instability strip is given in this paper.

在本文中我们对两种不同的βCephei变星的理论脉动不稳定带作了比较。

互联网摘选

On the excitation mechanism of pulsation for β Cephei stars

关于仙王座β型变星的脉动激发机制

互联网摘选

In the speeded up program, the fourth and fifth flights developed the techniques of rendezvous and docking with Agena B as the target.

在加速计划中，第四次和第五次飞行的目标是开发与阿金纳B会合与对接技术。

互联网摘选

But it's in the habitable zone because Proxima Centauri is a red dwarf star about 100 times fainter than the sun.

但因为比邻星是一颗红矮星，它比太阳暗100倍左右，因此行星位于宜居区。

互联网摘选

NASA says there are100,000, all squeezed ( relatively speaking) into a small portion of the Omega Centauri star cluster.

美国宇航局说，目前有10万，都挤在一个半人马座星团欧米茄一小部分（相对而言）。

互联网摘选

The nearest star, Proxima Centauri, has a planet orbiting it not much bigger than Earth.

有一颗大小与地球相近的行星围绕着距离太阳最近的恒星——半人马座比邻星运转。

互联网摘选

Video Discription: For astronomers, Omega Centauri has been an outcast amongst globular clusters for a long time.

对于天文学家来说，半人马座欧米茄已久的球状星团之一弃儿。

互联网摘选

At the news conference, Hawking, along with Russian billionaire investor Yuri Milner and a group of scientists, detailed a new project that aims to send a multitude of tiny, wafer-size spaceships into space to the neighboring star system Alpha Centauri.

在新闻发布会上，霍金和俄罗斯亿万富翁投资人尤里·米尔纳以及许多科学家一起，对这个全新的太空项目进行详细讲解。该项目计划建造大批微型星际飞船，并将其发射至临近的半人马座阿尔法星。

互联网摘选

If these tiny spaceships travel at 20 percent the speed of light, they'll be able to reach Alpha Centauri in just 20 years, Milner said.

米尔纳表示，如果这些微型星际飞船能够以1/5的光速行驶，那么它们就有望在20年之内到达阿尔法星。

互联网摘选

If we aresuccessful, a flyby mission could reach Alpha Centauri about 20 years afterlaunch, and send back images of any planets discovered in the system.

如果我们成功的话，这个飞掠任务将会在发射后二十年左右到达半人马座阿尔发星，并发送回来在那个星系中发现的行星的图片。

互联网摘选

Speaking at the Tencent WE Summit in Beijing, Hawking appealed to investors to back his plans to travel to Alpha Centauri.

他在北京的腾讯WE大会上发言时，请投资者们资助他前往半人马座α星的太空项目。

互联网摘选

The third victory condition is to be the first civilization to construct a spaceship to colonize Alpha Centauri, the nearest star system to Earth.

最后就是空间竞赛，第一个完成向射手座阿尔法星发射殖民火箭的文明将获得胜利。

互联网摘选

Such a system could reach Mars in less than an hour, or reach Pluto in days, pass Voyager in under a week and reach Alpha Centauri in just over 20 years.

这种飞船可以在不到一个小时的时间内到达火星，几天内即可到达冥王星，不到一周就能经过“旅行者”号探测器，并可在20多年后到达半人马座α

互联网摘选

The star, Alpha Centauri is the closest star besides our sun. Besides Sunday, I play basketball every morning.

除了太阳之外，半人马座a星离地球最近。除星期天外，我每天早上打篮球。

互联网摘选

The author introduced procurement situation of SYD Company from the aspect of procurement category, procurement organization and process management, it pointed out the problems on supplier management and procurement process.

从采购分类、采购组织管理和流程管理等方面介绍了SYD公司采购现状，指出了公司在供应商管理和采购流程方面存在的问题。

互联网摘选

Results: As an independent and assistant part of SYD 4228 system, this ECG lead converter/ selector can be used to record ECG waveform in animal experiment.

结果：本转换仪配合SYD系统在高血钾实验中使用，满足了SYD系统进行描记心电图实验的需要。

互联网摘选

A callus of sugar cane was inoculated with smut crude toxin ( Ustiagoscitaminea syd).

甘蔗黑穗病菌（UstiagoScitamimeaSyd）的粗毒素处理三个甘蔗品种（新台糖10号、CP65／375和桂糖12号）的愈伤组织。

互联网摘选

Syd, hey. we're in vegas. we're here.

嘿，雪梨，我们在拉斯维加斯，我们在这。

provided by jukuu

" Syd": represents the environment and captures the vigour and energy of Australia and its people ( from Sydney).

席德：环境和捕捉澳大利亚及其人民（悉尼）的活力和能量。

互联网摘选

Studies on occurrence and control of Gymnosporangium HARAEANUM syd.

梨锈病的发生规律调查及防治研究。

provided by jukuu