What if the Service contract changes?

如果服务契约改变了呢？

The issue deals with service contract design.

这一问题关心服务契约的设计。

XML namespaces used by the service contract documents.

服务契约文档使用的XML名称空间。

The vacation request form describes a service contract.

休假申请单描述了一个服务契约。

Users do not even have to have a wireless service contract.

用户甚至不需要签订无线网络服务合同。