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パナマ運河の背後にある天才技術は、動く世界最大の船をロックします
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Heritage Days: Open day at Hengelo canal lock - Filling the lock #Hengelo
How does the Panama Canal work? 😍
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RIVER LOCK in GERMANY 🇩🇪 Koschener canal lock in action in lausitzer seenland [Timelapse]
