post-tensioned prestressed concrete beam
post-tensioned prestressed concrete beam
后张预应力混凝土梁
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Post-tensioned unbonded Prestressed concrete bar is suitable for cast-in –Place concrete of Long –span and Wide buildings, Large load Prefabricated beam and other construction.
后张无粘结预应力筋适用于大跨度、大开间建筑的现浇楼板、大荷载的预制梁及其他特种结构。
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