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讨论了水工金属结构图形库的内容选择、建库方法及原则等问题，实现了适用于微机ＣＡＤ系统的水工金属结构图形库的设计。
The content selection, construction method and principle of hydraulic metal structure graphics library are discussed, and the design of the hydraulic metal structure graphics library suitable for microcomputer CAD system is realized.