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讨论了Ｗｉｎｄｏｗｓ环境下数据采集系统研制过程中所面临的两个问题．即保护方式下物理地址的获取与采集方式问题，并提出了解决方案．
Discusses the two problems faced by the development of data acquisition system in Windows environment. That is, the way of obtaining and acquiring the physical address under the protection mode and put forward the solution.