Read Edit View history 太阳黑子周 tàiyánghēizǐzhōu sunspot cycle Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 太阳黑子周/ 太陽黑子周 tàiyánghēizǐzhōu sunspot cycle the periodic change in the number of sunspots observed on the sun's surface Edit Delete References Add reference No references for this word.
太阳黑子周/ 太陽黑子周 tàiyánghēizǐzhōu sunspot cycle the periodic change in the number of sunspots observed on the sun's surface Edit Delete