我可以看看你的GMDSS岸基维修协议吗？
PSCO: May I have a look at your shore base maintenance agreement for GMDSS?
但在服务协议里，你们承诺的是二十四小时内派人维修。
But in the service agreement it says that you will send someone within twenty-four hours.
很多unix操作者和他们的供应商有一个支持协议以保证在24小时内更换或进行维修。
Many UNIX operators have a support contract with their vendor that guarantees a replacement or repair within 24 hours. Therefore, the availability of a typical UNIX server is.
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