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- mean solar unit (单位) 平太阳日
- A sidereal day is shorter than a mean solar day by 3 minutes and 56 seconds. 恒星日比平均太阳日短三分五十六秒。
- The equation of time, which transforms the true solar time into a mean uniform time, the so-called mean solar time. 时差，将真太阳时转换为平时，即平太阳时。
- Greenwich Mean Time (GMT) is mean solar time at the Royal Greenwich Observatory in Greenwich, London, England, which by convention is at 0 degrees geographic longitude. 格林尼治国际标准以英国伦敦格林威治皇家天文台为准，也就是零经度为准。
- Solar is a major industrial town, the town 18 manufacturers produce more than 10 solar units, farmers use a penetration rate of 98.5 percent cookers. 太阳灶是该镇的一大产业，全镇生产厂家18家，年产太阳灶10万余台，农户使用太阳灶普及率达98.;5%25。
- That means solar panels can generate ten times as much electricity as they currently do.Our science reporter Matt McGrath has the details. 这意味着太阳能电池板可以产生相当于现在10倍的电力。
- mean solar semi-diurnal constituent 平均太阳半日分潮
- Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
- A sidereal day is shorter than a mean solar day by 3 minutes and 56 seconds 恒星日比平均太阳日短三分五十六秒。
- We can use solar energy to do many things today. 如今，我们可以利用太阳能做很多事情。
- Do you mean say we are met for a thunder storm? 你肯定我们会遇到一场雷雨？
- I feel mean for not doing more for my son. 我对没为我儿子多做点事而感到惭愧。
- They accurately predicted solar eclipses. 他们精确地预告了日蚀。
- Defeat in this election would mean he was done for. 这场选举的失败意味着他政治生涯的结束。
- The solar system was formed 4.5 billion years ago. 太阳系是四十五亿年前形成的。
- By power we mean the rate of doing work. 我们说功率就是指做功的速率。
- He gave a lecture on the use of solar energy. 他就太阳能的利用作了一场讲演。
- I have no conception of what you mean. 我想不出你的意思是什么。
- The mean yearly rainfall is20 inches. 每年平均降雨量是二十英寸。
- A mechanical model of the solar system. 太阳系仪太阳系的机械模型
