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This can be accomplished by modifying the loop of the example above so that the invoke activity invokes the external service immediately instead of invoking an event handler.

这可以通过修改上述示例的循环来完成，以便调用活动直接调用外部服务，而不是调用事件处理程序。

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Typically, most machines connected to the Internet have two connections: a local loop to themselves and a connection to their local service provider.

通常，连接至因特网的大多数机器中有两个连接：到其自身的本地循环和到其本地服务供应商的连接。

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American Express says it is uniquely positioned to offer the service thanks to its "closed-loop" business model in which it acts as card issuer, merchant acquirer and payment processing operator.

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In this context, a network effect is a positive feedback loop whereby platforms with stronger ecosystem of developers, content and service providers attract more customers.

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Oltio is a mobile payment service provider based in South Africa and will offer MasterCard?s open loop and remote payments solutions to merchants in the country.

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