The next step is to perform two updates to EIS1: one to the order system and one to the billing system.
下一步是执行对EIS1的两个更新：一个是对订单系统更新，另一个是对记帐系统进行更新。
This is why the catch block contains calls to EIS1 transactions that cancel updates to the order and billing systems.
这就是catch块中包含对eis1事务的调用的原因，为了取消对订单和记帐系统的更新。
These services can provide any level of business function, from order management, to billing, to inventory, to fulfillment.
这些服务可以提供任意层次的业务功能，从订单管理，到记账，到存货清单，到执行。
This is especially important for billing purposes, in order to prevent inaccurate charges to the service requestor.
这对于记账用途来说特别重要，从而可以避免对服务请求者的错误收费。
Typically, on a periodic basis, the provider uses the meter service to generate billing data in order to charge the contracted requestors.
一种典型的情况是，提供者定期使用计量服务来生成记账数据对签过合同的请求者进行收费。
The realization of a C# coffee shop order/billing system source code, C/S mode, can also be used for small restaurants to use.
说明：一个C#实现咖啡厅点单/结账系统源码，C/S的，也可用于小型餐饮店使用。
Sender of gift fills out all pertinent data on the order form including their billing information, the recipient name, the recipient email, and a short message to the recipient.
礼物寄送人在订购单上填入所有相应的资料，包括他们的付款信息、收件人名称、收件人邮件和给收件人的简短信息。
Sender of gift fills out all pertinent data on the order form including their billing information, the recipient name, the recipient email, and a short message to the recipient.
礼物寄送人在订购单上填入所有相应的资料，包括他们的付款信息、收件人名称、收件人邮件和给收件人的简短信息。
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