短語詞組短語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