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Explanation: The center of our Milky Way Galaxy is hidden from the prying eyes of optical telescopes by clouds of obscuring dust and gas.
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说明:在不透光尘埃与云气的遮掩下，我们银河系的中心在普通可见光望远镜中是难以看见的。 |
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Explanation: This frame from a spectacular time lapse movie shows Comet McNaught - the Great Comet of 2007 - sweeping through the inner solar system.
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说明：这张影像是一部精彩时序电影的定格，主题是2007年大彗星--麦克诺飞掠过太阳系内围的情景。 |
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Explanation: This past weekend Comet McNaught peaked at a brightness that surpassed even Venus.
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说明：上个周末，麦克诺特彗星亮度激增，甚至比金星还亮。 |
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Explanation: We're going in.
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说明：我们正在前进。 |
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Explanation: What lies at the bottom of Hyperion's strange craters?
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说明：土卫七奇异的陨石坑底，到底藏了些什麽？ |
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Explanation: What's causing those odd rings in supernova 1987A?
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说明：这些奇特的超新星1987A环状结构到底是怎麽形成的呢？ |
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Explanation: Why would some regions on Titan reflect very little radar?
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说明：为什麽泰坦上有些区域的雷达回波特别少呢？ |
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Explanation:This is Kind of sand which is washed.got rid of clay.graded and disposed sarface.and it.saiso molding and core sand used in casting iron and middlesmall sized casting stee.
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水洗硅砂系列：这是一种经过洗涤、脱泥、分级和表面处理的砂，具有较清洁的原形颗粒，用于铸铁件，中小型铸钢件的型芯砂。 |
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Explanations and prolonged discussions must be put on the next pages.
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解释和延迟的讨论必须放到后面一页。 |
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Explanations should be given in the work record on the items that cannot be inspected due to restricted conditions as well as the problems found during an inspection.
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因条件限制，无法检验的项目以及在检验中发现的问题应当在工作记录上说明。 |
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Explantation The culture of isolated tissues of adults or embryos in an artificial medium for the study of maintenance, growth, and/or differentiation.
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外植：在人工培养基上培养由成体或胚分离出的组织，以研究其维持、生长及/或分化。 |
