The separation of positively and negatively charged particles takes place during the development of the storm cloud.

在暴风云的形成过程中，带正电荷的粒子与带负电荷的粒子相互分离。

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The separation of charged particles that forms in a storm cloud has a sandwich-like structure.

在风暴云中形成的带电粒子分散形成的结构像三明治。

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Angular momentum for particles, separation of center-of-mass and relative coordinates, effective energy diagram.

微粒的角动量，质心分离以及相对坐标系，有效能量图。

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If it were not for this kick, the apparatus would be behaving just like Maxwell's Demon, a hypothetical creature (conceived of in the 19th century by James Clerk Maxwell) that could cause the spontaneous separation of hot and cold particles and thus do serious damage to some of the laws of physics.

ECONOMIST: Microrefrigeration