这个购物订单号被用作事件排序的键。

The purchase order number is used as the key for event sequencing.

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从图1可以看到我们已经加载了一个虚构的购物订单请求的mq队列。

In Figure 1, you can see that we have loaded an MQ queue with fictitious purchase order requests.

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电脑告诉我，离此地面50米处有一个饭店，于是，我向饭店下购物订单。

The computer told me that the ground 50 meters away from this there is a hotel, so I under the purchase order to the hotel.

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