“maintenance of hydraulic metal structure”的概念、定义、翻译、参考文献-科学参考

单词	maintenance of hydraulic metal structure
释义	maintenance of hydraulic metal structure Encyclopedia 工学水工建筑物维修释 maintenance of hydraulic metal structure水工金属结构维修保证水工金属结构安全可靠运行和正常使用寿命的工程措施。
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