Articles in one system are equivalent to articles in another system: ~ law. (Form) Make corresponding (measures) for a certain situation: make a decision | take measures.

Interpretation: a relative relationship, the myopia of the two can be regarded as an exchange.

Metaphor means that one thing is consistent with another.

For example: correspondence principle-the principle of transition from classical atomic theory to quantum theory proposed by Danish physicist N.H.D Bohr. For a certain situation, corresponding to a certain situation (practice). For example, the corresponding quantity-the mathematical term of fractional multiplication application problem.