This result is known as the Bohr correspondence principle.

这样的结果通称为玻尔对应原理。

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In fact, the business correspondence has whose peculiar writing principle.

实际上，商业书信有其特殊的写作原则。

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In fact, the business correspondence has whose peculiar writing principle.

实际上，商业书信有其特殊的写作原则。

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