“lightning protection device for derrick”的概念、定义、翻译、参考文献-科学参考

单词	lightning protection device for derrick
释义	lightning protection device for derrick Encyclopedia 工学高架设施防雷装置规定释 lightning protection device for derrick井字架防雷装置通过在建筑施工现场控制和限制雷电发生的位置，使其不至发生危害的井字架防雷或避雷设备。
随便看	concentrated polymer solution concentrated solution concentrated solution for injection concentrated space concentrated vortex concentrate feed concentrate of diatomite concentrate provitamin coniferous concentrate quality requirement concentrate supplement concentrating column concentrating solar cell concentration concentration cell concentration Clarke concentration class concentration coefficient concentration compactness lemma I concentration compactness lemma II concentration compactness lemma Ⅱ concentration compactness principle concentration-compactness principle concentration constant concentration control coefficient concentration control coefficients，CCCs

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