明石海峡大橋のヘリコプタ渡海工事...as to akashi-kaikyo bridge now under...
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- 明石海峡大橋のヘリコプタ渡海工事...As to AKASHI-KAIKYO Bridge now under construction, pilot rope stretching work was carried out across the sea by helicopter on Nov
6
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Post on 20-Jul-2020
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