Traditional Culture Encyclopedia - The 24 Solar Terms - In a year, the solar terms of direct sunlight at the equator are&; niobium (Nb) ...
In a year, the solar terms of direct sunlight at the equator are&; niobium (Nb) ...
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Test and analysis: when the sun shines directly on the equator for the first time in a year, this day is called the vernal equinox, which is March 2 1, and the world is divided equally between day and night; The second direct event on the equator is the autumnal equinox, that is, on September 23, the world is divided equally between day and night.
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