本文要解决的任务就是如何开发OPC历史数据服务器。
The mission that this article wants to solve is how to develop the OPC historical data access Server.
OPC历史数据服务器提供了一种标准的历史数据访问机制给那些对历史数据感兴趣的用户。
OPC historical data access Server provides a kind of standard mechanism of data access for the users who are interested in historical data.
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