常見(jiàn)例句Radio sources were divided by Fanaroff &Riley (1974) into two classes, now known as Fanaroff and Riley Class I (FRI), and Class II (FRII). 來(lái)自電波喧噪活躍星系的電波發(fā)射是同步加速輻射，被臆測(cè)是非常平滑的、自然的寬頻和高度偏振。 返回 Frii