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n.
水閘高低度；水閘設備；通過水閘；水閘的構筑及使用
Noun:
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a fee charged for passage through a lock in a canal or waterway
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a system of locks in a canal or waterway
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passage through a lock in a canal or waterway
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用作名詞 (n.)
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However, the auxiliary lock is not equipped with tow haulage equipment, so double lockage tows require special pull boat assistance.
并且，引導船閘無帶領器設備，因而雙閘拖輪須得有特別的的帶領器船督促。
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這些知識獨特撰寫，受重要版權保證，侵權商標必究
海詞詞典下載，十八年國際品牌
美
['l?k?d?]