当入站事件基于承载业务有效负载的事件时，将在监视模型的入站事件中创建描述业务有效负载类型的事件部分。

When an inbound event is based on an event that carries a business payload, an event part that describes the type of the business payload is created in the inbound event in the monitor model.

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进一步说，ODR的数量将根据期望网络承载的负载总量来确定。

Beyond that, the number of ODRs needed will be determined by the amount of load you expect the network to experience.

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事件的负载(payload)承载着在发送小部件和接收小部件之间传送的消息，如图1所示。

The payload of an event carries messages that are sent between the sending widget and the receiving widget, as shown in Figure 1.

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