the property of having poles or being polar
极性
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it exhibits polarity when presented to a magnetic needle .在磁针面前,它会表现出极性。
the relative orientation of poles; the direction of a magnetic or electric field
相对极向;磁场方向,电场方向
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the magnetic field peaks in strength immediately after switching polarity .在转换相对极向后,磁场的磁力立刻达到了最高点。
the state of having two opposite or contradictory tendencies, opinions, or aspects
(倾向,观点,方面)截然相反,截然对立
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the polarity between male and female 男性和女性的对立
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[count noun]
the cold war's neat polarities can hardly be carried on .冷战的纯粹截然对立状态难以持续。
【生】 反向性,极性。