opposite charges

基本解释

Like charge repel each other, but opposite charges attract.
相同的电荷互相排斥，但相反的电荷却互相吸引。
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Like charges repel each other, but opposite charges attract (each other).
同性电荷相互排斥，异性电荷相互吸引。
The upper and lower rings have opposite charges, which allow the motor to contract and release, alternately tugging at the DNA like a ring of hands pulling on a rope.
高环和低环具有相反的电荷，这样的特性可以使其像拉绳子的两只手一样交替地拉住DNA。

In electrophoretic displays, tiny white and black pigment particles are given opposite electrical charges and encapsulated in microcapsules of about the diameter of a human hair.
ECONOMIST: REPORTS
And since their charges are opposite, the interaction deflects the two sorts of particles in different directions.
ECONOMIST: The search for dark matter: Ethereal yet weighty The