行星

Although there's no way that this particular planet could support life, being able to spot carbon dioxide in its atmosphere offers hope for probing the atmospheres of planets more like Earth — and so bolstering the search for life outside the Solar System.

尽管这颗行星是否有生命的存在还没办法知道，但是从该行星的大气中可以发现二氧化碳带给了人们去寻找大气层更加接近地球的行星的希望，也给人类在太阳系外寻找生命迹象起到了支撑作用。

He suggested the following figures should be multiplied: how many stars are formed in the galaxy in a year; what fraction of these have planets and thus form solar systems; the average number of planets per solar system that have the potential to support life; on what percentage of those where it is possible do such biospheres actually form; what percentage of such biospheres give rise to intelligent species; what percentage of intelligent life is able to transmit signals into space; and for how long could such intelligence keeps sending signals.

他的方法包括一系列应该纳入考虑范围的数据：银河系每年新诞生的恒星数；拥有行星并组成了星系的恒星比率；有可能会出现生命迹象的行星平均数；以上行星能够真正孕育生命的比率；演化出了智能物种的比率；能使用无线电通讯与外太空联系的智能生物比率；智能生物使用无线电通讯方式的持续时间。更多信息请访问： http：//www.24en.com

He suggested the following figures should be multiplied: how many stars are formed in the galaxy in a year; what fraction of these have planets and thus form solar systems; the average number of planets per solar system that have the potential to support life; on what percentage of those where it is possible do such biospheres actually form; what percentage of such biospheres give rise to intelligent species; what percentage of intelligent life is able to transmit signals into space; and for how long could such intelligence keeps sending signals.

他的方法包括一系列应该纳入考虑范围的数据：银河系每年新诞生的恒星数；拥有行星并组成了星系的恒星比率；有可能会出现生命迹象的行星平均数；以上行星能够真正孕育生命的比率；演化出了智能物种的比率；能使用无线电通讯与外太空联系的智能生物比率；智能生物使用无线电通讯方式的持续时间。

If we now go back to the concept of the planetary picture, incorporating the factor in the middle, we note that AR=CU/VU=MC/AP, and we thus have 2 single planetary pictures. In order to find further pictures, we could also quickly glance at a printout listing the midpoints.

如果现在回到行星图像这个概念上，我们可以把这种关系记为 AR=CU/VU=MC/AP 由中点引发的关系让我们有了两个行星图像，我们可以快速的浏览中点清单来找到更多的行星图像。

Nor is life likely to exist on the newly discovered planet because it is only 5 million miles from Pegasus 51, so close that it whizzes around the star once every four days and must be super hot Nevertheless, the fact that astronomers have found a planet around a sun like star bolsters their belief that others must abound in the universe.

生命也不大可能存在于新近发现的那颗行星上，因为它与飞马星座51的距离只有500万英里，如此之接近使它每4天围绕这颗恒星飞速旋转一次，那必定是超热的。尽管如此，天文学家已发现有一颗围绕类似太阳的恒星运行的行星，这一事实支持他们这样的信念：宇宙中其他的行星必然是很多的。

Taking Mars in the Jiyuan Li (1106) as an example, the result shows that the average error of its mean geocentric longitude in a synodic period is about 4'.

具体算法由两个步骤组成：首先，按照行星与地球绕日匀速运动的假设，来推算行星视运动的地心平黄经；然后，对平黄经进行修正，由此获得所求时刻行星的地心真黄经。

The Smithsonian's Robert Noyes told a news conference."The planet is the largest planet that has ever been seen, inside our solar system or out, and it's less dense planet".

Smithsonian 的 Robert Noyes 在一个新闻发布会上说，&这个行星是有史以来观察到的最大的行星，在我们的太阳系之内或者之外，而且他是一颗低密度行星。&

The Smithsonian's Robert Noyes told a news conference,"The planet is the largest planet that has ever been seen, inside our solar system or out, and it's the least dense planet."

史密森协会的罗伯特·诺伊斯在新闻发布会上说：&这颗行星是我们在太阳系内外所发现的所有行星中最大的，同时也是密度最小的行星。&

The Smithsonian's Robert Noyes told a news conference ,"The planet is the largest planet that has ever been seen , inside our solar system or out, and it ' s the least dense planet."

史密森研究所的 Robert Noyes 召开了一个记者会，这个行星是目前宇宙中最大的行星，它是密度最小的行星。

Research has been done on the coupling form between the two-row planetary gear train and the shift restriction based on the matrix, and then the method of establishing mathematics model has been presented to analyze the planetary gear transmission using MATLAB. The coupling-matrix, restriction-matrix and transmission matrix form the model. All coupling-matrices corresponding two kinds of the coupling form determine the planetary gear transmission model.

基于矩阵理论对双排行星齿轮变速机构的行星排之间联结、换挡约束进行研究，提出用联结矩阵、约束矩阵和传动矩阵构建数学模型并使用MATLAB进行传动分析的方法。2种方式的联结形式所对应的联结矩阵可以确定机构所有可能的结构型式，据此得到双排行星齿轮变速机构全部型式谱图。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。