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lifting installation of steel structure
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lifting installation of steel structure
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工学
钢结构工程施工
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lifting installation of steel structure
钢结构提升安装
在大型钢结构安装工程中不采用散件吊运、原位拼装等常规吊装方法,而是在易于拼装作业的地面(或其他位置)将钢结构整体拼装(或局部拼装),然后通过特殊的起重手段将结构整体提升至高空等设计位置,予以定位和固定,从而完成大型结构安装的施工方法。
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Galactic radio astrophysics
galactic radio astrophysics
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galactic radio emission
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galactic radio radiation
Galactic radio spur
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galactic rotation
Galactic rotation curve
galactic rotation curve
galactic sheet
Galactic source
galactic space
Galactic spiral structure
Galactic spur
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Galactic structure
galactic structure
Galactic subsystem
galactic superbubble
Galactic supernova
galactic supernova
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