普通法有一个补充的制度，就是衡平法。

There is a supplementary system of law called equity.

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为了司法衡平功能的有效发挥，主体、制度、理念、环境、技术等要素都不可或缺。

In order to exert judicial equating function effectively, the factors, such as subject, system, idea, environment, technique etc. are all necessary.

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1870年，英格兰衡平法院以判例的形式确立了浮动抵押制度，之后为许多国家接受。

In 1870, England balance court established floating charge system with the judicial precedent, and then many nations accepted it.

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