This paper discusses two modes of data access and SQL technique. It also introduces the implementation of the high-speed data access in multi-windows fire-fighting CAD system.
讨论了CAD应用系统的两种数据存取方式及SQL技术，实现了多窗口消防CAD系统数据的高速存取。
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Tools and devices should be placed as not to cause the tripping hazard. Never block the access to firefighting equipment and other safety equipments.