“ancient.sunspot observation”的概念、定义、翻译、参考文献-科学参考

单词	ancient.sunspot observation
释义	ancient.sunspot observation Encyclopedia 理学太阳物理学释 ancient.sunspot observation太阳黑子的古代观测在望远镜发明以前直接用肉眼观察日面上的黑子现象。在一般情况下，由于太阳光十分刺眼，看到这种现象的机会不多。但在日出或日落时，或在大雾笼罩或风沙弥漫的天气，日光减弱，就有可能看到日面上的大黑子。
随便看	antiisomorphism functor anti isotropic quadratic form anti-isotropic quadratic form anti-jamming satellite communication system anti-Japanese campaign troupes Anti-Japanese Democratic Base Area Anti-Japanese Democratic Government Anti-Japanese Drama Anti-Japanese Literary and Art work Team Anti-Japanese Literary Association of the Shaanxi–Gansu–Ningxia Border Region Anti-Japanese Literature Anti-Japanese National United Front Anti-Japanese Pictorial Anti Japanese War Drama Anti-Japanese War Road of Twenty-four Turning anti-jovian point antikaon antikeratin antibody A. N. Tikhonov A. N. Tikhonov (1906—1993) antiknock antiknock chamber Antikythera mechanism antikythera mechanism antilaplacian

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