短語詞組短語solar activity cycle 太陽活動周;太陽活動周期Solar System Cycle 太陽系周期solar active cycle 太陽活動周solar thermochemical cycle 光熱循環(huán)solar magnetic cycle 太陽磁周;日磁周期solar spontaneously cycle heating system 太陽能自然循環(huán)熱水系統(tǒng)double sunspot solar climatic cycle 雙太陽黑子氣候周期solar compelling cycle heating system 太陽能強(qiáng)迫循環(huán)熱水系統(tǒng)Solar Magnetic Reversal Cycle 磁場逆轉(zhuǎn)周期 返回 solar cycle