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It is easy to bring crack that pretensioned prestressed hollow slab beam is constructed in winter.
先张法预应力空心板梁在冬季施工过程中，易产生裂缝。
youdao
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It is easy to bring crack that pretensioned prestressed hollow slab beam is constructed in winter.
先张法预应力空心板梁在冬季施工过程中，易产生裂缝。
youdao