“sunspot cycle”的概念、定义、翻译、参考文献-科学参考

单词	sunspot cycle
释义	sunspot cycle Encyclopedia 理学太阳黑子周期释 sunspot cycle太阳黑子周期太阳黑子出现频数的周期性变化。 Astronomy sunspot cycle黑子周
随便看	circle of position circle of qi in qigong exercise circle of reference circle of right ascension circle of similarity circle order circle orthotomic circle packing circle pedal curve circle point at infinity circle-point midpoint theorem circle point picking circle polynomial circle power circle problem circle property circle quadrangle circle quadrature circle radial curve circle reading circle right circles-and-squares fractal circle scanner circle-sector land use model circle segment triangle

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