sunspot polarity
常見例句
- Back in 2008 solar scientists saw a high-latitude, reversed-polarity sunspot, suggesting the start of a new solar cycle.
在2008年的時候，太陽科學家們觀測到一個位于太陽高緯地區(qū)反極性的黑子，他們認為這是新一輪太陽活動開始的標志。 - The rotational direction of the southern leg system was in accordance with that of the main sunspot with N-polarity below it, which shows that there may be some internal relation between the two.
南腿系的旋轉跟它下面的N極主黑子的旋轉方向一致，表明兩者之間可能存在著某種內(nèi)在的聯(lián)系。 返回 sunspot polarity