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单词 sunspot
释义 sun·spot AHD[sŭnʹspŏt'] D.J.[ˈsʌnˌspɒt]K.K.[ˈsʌnˌspɑt]n.(名词)a magnetogram illustrating magnetic activity associated with sunspotsPhotoDisc, Inc.
  1. Any of the relatively cool dark spots appearing periodically in groups on the surface of the sun that are associated with strong magnetic fields.黑子:周期性地成群出现在太阳表面的温度相对较低的暗点,与强磁场有关
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