原子序数

proton number的用法和样例：

例句

Each atom normally has the same number of electrons revolving about the nucleus as it has protons in the nucleus.通常每个原子内绕原子核旋转的电子数和原子核内的质子数相同。
Proton transport is controlled by both segmental motion of the polymer chains and hoping of protons.通过构造新模型，研究了质子数等因素对质子在质子交换膜中输送过程的影响。

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