Infrastructure in a bridge-1.jpg
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橋梁、支承部の落橋防止構造の一例。（ 上田市小牧橋）、橋梁、支承部の落橋防止構造の一例
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Infrastructure in a bridge 1, Bridge elements
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An example of bridge structure that prevents bridge fall at the branch section.Komaki-bashi Bridge in Ueda City, an example of anti-falling structure in bridges and branch lines
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橋梁要素のインフラ
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