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预应力混凝土结构体系
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预应力锚具
在制作预应力构件时用来锚固预应力筋的工具。其主要依靠摩擦阻力、握裹和承压对预应力筋进行锚固,并永久地留在构件上(见图)。
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Beijing opera score for The Drunken Beauty
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更新时间:2026/10/19 21:07:15