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.
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.
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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