A request parser is chosen based on the transaction context to parse out the request business object which contains a control object as the header and a transaction object as the body.

根据事务上下文选择一个请求解析器，请求解析器对请求业务对象进行解析；这个对象的头包含一个控制对象，体包含一个事务对象。

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Control object, as a transaction context object, is passed through the whole transaction process from beginning to the end.

在整个事务处理过程中，作为事务上下文对象传递控制对象。

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Control object, as a transaction context object, is passed through the whole transaction process from beginning to the end.

在整个事务处理过程中，作为事务上下文对象传递控制对象。

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