relative sunspot number
短語詞組
- Zurich relative sunspot number 囌黎世黑子相對數(shù)
- international relative sunspot number [天]國際相對太陽黑子數(shù)
- sunspot relative number 太陽黑子相對數(shù)
- relative number of sunspot 黑子相對數(shù)
- sun sunspot relative number prediction 太陽
- Sun -sunspot relative number-prediction 太陽 返回 relative sunspot number