让我们切换到第二个场景，此场景介绍服务的请求-响应类型。

Let's switch to our second scenario, which covers a request-response type of service.

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任务切换和交接是相似类型的消耗。

Task switching and hand-offs are similar kinds of waste.

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燃料类型之间进行切换，东风油罐车司机简单地按了一个按钮。

To switch between fuel types, the driver simply presses a button.

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燃料类型之间进行切换，东风油罐车司机简单地按了一个按钮。

To switch between fuel types, the driver simply presses a button.

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