法理作为我国法律的正式渊源，是基于现实的明智选择。

It's a sensible choice to take legal principle as the formal source of the law of our country.

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然而，为什么必须由社会渊源来弥补正式渊源的不足，其理论基础究竟何在，在法理上则很少有研究性的文章。

But why we need the social sources to make up the weakness of the formal sources? And what's the theoretical basis of their existence? There are few articles about it in jurisprudence.

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因此《沃尔夫登报告》(历史渊源)导致了立法过程(法律渊源)，议会通过这个过程赋予1959年《道路犯罪法》以法律效力(正式渊源)。

Thus the Wolfedden Report (historical source) brought about the process of legislation (legal source) whereby Parliament gave its authority (formal source) to the Street Offences Act 1959.

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