Each business rule group supports the operation signatures defined in a provided interface, thus enabling type safety.
每个业务规则组均支持在提供的接口中定义的操作，从而实现了类型安全。
If a service client is wired to a business rule group that USES the rule set in Figure 5, then the rules execute when the client invokes the calculate shipping operation.
如果服务客户机连接到使用图5中的规则集的业务规则组，则当客户机调用calculate shipping操作时将执行相应的规则。
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