| 字词 | polarity |
| 释义 | polarity 极性 1. A distinction between positive and negative electric charges. 一种正负电荷之间的区别。 2. A distinction between positive (north) and negative (south) magnetic poles of an electromagnet or permanent magnet. 一种电磁体或永磁体的南北磁极之间的区别。 3. The difference between two points in a system which differ in one respect. 一个系统中在某方面不同的二点之间的差异。 |
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