两极的解释(1) [North and South Poles of the earth]∶地球的南极和北极 (2) [the two poles (of a magnet or an electric battery; bipolar)]∶电极的阴极和阳极或磁极的南极和北极 (3) [two polarities]∶ 比。
两极的解释 (1) [North and South Poles of the earth]∶地球的南极和北极 (2) [the two poles (of a magnet or an electric battery; bipolar)]∶电极的阴极和阳极或磁极的南极和北极 (3) [two polarities]∶ 。

两极的解释 (1) [North and South Poles of the earth]∶地球的南极和北极 (2) [the two poles (of a magnet or an electric battery; bipolar)]∶电极的阴极和阳极或磁极的南极和北极 (3) [two polarities]∶ 。
两极的解释(1) [North and South Poles of the earth]∶地球的南极和北极 (2) [the two poles (of a magnet or an electric battery; bipolar)]∶电极的阴极和阳极或磁极的南极和北极 (3) [two polarities]∶ 。

两极的解释 (1) [North and South Poles of the earth]∶地球的南极和北极 (2) [the two poles (of a magnet or an electric battery; bipolar)]∶电极的阴极和阳极或磁极的南极和北极 (3) [two polarities]∶ 。