源和流的关系
The relationship between the source and the flow
以上为机器翻译结果，长、整句建议使用 人工翻译 。
二者之问是源和流的关系，是从渐变到突变的医展，是由量变到质变的必然。
The relation between the two is the development from gradual transformation to mutation, as well as the inevitability from the quantitative to qualitative changes.
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