And, a lot of the derivations you will see in physics rely on this being able to model as point charges.
然后,你在物理学中看到的许多东西,都是靠以点电荷为模型得到的。
I can model it as point charges.
我能用点电荷来构造模型。
I can model this whole thing as point charges.
我能把这一切设计成一个点电荷模型。
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