“steel penstocks of hydroelectric stations”的概念、定义、翻译、参考文献-科学参考

单词	steel penstocks of hydroelectric stations
释义	steel penstocks of hydroelectric stations Encyclopedia 工学〔水电站金属结构〕释 steel penstocks of hydroelectric stations水电站压力钢管水电站中，用钢材制作的、承受较大内水压力的输水管道。
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