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- The first exoplanet orbiting a normal star was discovered a mere12 years ago. 仅仅12年前,人类才发现了第一颗绕恒心运行的系外行星。
- Their idea was that a normal star implodes until its core reaches the density of an atomic nucleus. 他们认为,正常的恒星必须在其核心密度增加到与原子核密度相当时,才会爆炸。
- The gravitational field of the stellar corpse is so strong that it rips gas from the normal star. 恒星“遗体”的引力场强大到将正常恒星的气体剥离。
- But there are images of binary star systems consisting of one normal star and one black hole,and of the central regions of Galaxies that are believed to contain black holes. 但是有由一个黑洞和一个正常恒星组成的双子星系统的图像,和被认为包含有黑洞的星系中心区域的图像。
- But there are images of binary star systems consisting of one normal star and one black hole, and of the central regions of Galaxies that are believed to contain black holes. 但是有由一个黑洞和一个正常恒星组成的双子星系统的图像,和被认为包含有黑洞的星系中心区域的图像。
- Novae occur in double star systems comprising a white dwarf - the end product of a solar-like star - and, generally, a low-mass normal star - a red dwarf. 双星系统中包含一个白矮星(类似太阳的恒星的最终演化产品)和一个红矮星(一种低质量的普通星球)。
- Among these is John Chrysostom, who observed that a normal star could not have shown exactly where in Bethlehem Jesus was to be found, as Matthew says this star did. 约翰克里索托就是其中一位,说一颗普通的恒星不可能在伯利恒的耶稣上找到,就像马太福音描述的这颗星一样。
- It is not hard to see why normal stars should be limited in mass. 要弄懂普通恒星的质量为什么要受到限制并不难。
- However, if a black hole passes through a cloud of interstellar matter, or is close to another“ normal” star, the black hole can accrete matter into itself. 然而,当一个黑洞穿过一片星云,或者靠近另一个正常恒星时,黑洞将会使它自身的物质增加。
- Since 1995, when astronomers spotted the first planet in orbit around another normal star, the number of extrasolar planets, or "exoplanets," has swelled to over 200. 自从1995年天文学家了第一个天外星球以来,太阳系外新行星的数量已经增长到200多个。
- It is likely that the companion star in47 Tuc W- a normal star with a mass greater than about an eighth that of the Sun- is a new partner, rather than the companion that spun up the pulsar. 向中子星奔去的物质缓缓地加快着中子星的旋转,如同小孩玩的旋转木马,每当转过来时就推它一把,它就会越转越快。
- Analysis of the X-ray data shows that the point sources are associated with binary star systems that contain a neutron star or black hole that is pulling matter away from a normal star. 对X射线数据的分析表明,点源与包含有中子星或黑洞(它们正从正常恒星吸走物质)的双星系统成协。
- The X-ray spectrum (see inset) of a binary star system consisting ofa black hole and a normal star indicates that turbulent winds ofmultimillion degree gas are swirling around the black hole. 上图中的X线光谱揭示了一个包含黑洞的双星系统中,黑洞附近吸积盘中的气体漩涡,这些气体的温度高达数百万度(应该写成等离子体才是)。
- The distribution of the wavelengths of the emissions does not resemble that of normal stars, and so the emissions are known as nonthermal radiation. 发射波长的分布与普通恒星并不相同,这就是非热辐射。
- The computer has a normal qwerty keyboard. 这台计算机有标准的英文键盘。
- The situation has returned to normal in the city. 这座城市的局势已恢复正常。
- The normal return fare to New York is fifty-six. 去纽约的来回票标准价是56元。
- Everything is absolutely normal. 一切完全正常。
- This case is not amenable to the normal rules. 这件事经不起常规的检验。
- The doctor said the child's temperature was normal. 医生说孩子体温正常。