Files of finished engineering are significant technique datum in basic design, and are important composes of national science and technology record.
竣工文件是基本设计的重要技术资料，是国家科技档案的重要组成部分。
Files of finished engineering are significant technique datum in basic design, and are important composes of national science and technology record.
竣工文件是基本设计的重要技术资料，是国家科技档案的重要组成部分。
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