翻訳と辞書 Words near each other ・ Half the Man (Clint Black song) ・ Half the Man (Jamiroquai song) ・ Half the Perfect World ・ Half the Sky ・ Half the sky ・ Half the Sky Foundation ・ Half the Sky movement ・ Half the Way ・ Half the World ・ Half the World (Belinda Carlisle song) ・ Half the World (Rush song) ・ Half the World Away ・ Half the World Is Watching Me ・ Half These Songs Are About You ・ Half Ticket ・ Half tide dock ・ Half Tide Rock ・ Half Tide Rock (Tasmania) ・ Half Tide Rocks (Massachusetts) ・ Half time (disambiguation) ・ Half time (electronics) ・ Half time (physics) ・ Half title ・ Half Ton class ・ Half Ton Cup ・ Half tower ・ Half Tree Hollow ・ Half Truck ・ Half United ・ Half viaduct Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Half tide dock ： ウィキペディア英語版 Half tide dock A half tide dock is a partially tidal dock. Typically the dock is entered at high tide. As the tide ebbs a sill or weir prevents the level dropping below a certain point, meaning that the ships in the dock remain afloat, although they still rise and fall with the tides above this. Half tide docks are particularly useful in areas with a large tidal range. The sill of a half tide dock must be set sufficiently far below the daily high tide mark to allow ships to pass over it. Obviously this was easier to achieve with small ships of shallow draught, or in areas with a large tidal range. Inside the dock, the depth of water beneath the sill's level depends only on the depth to which the dock was excavated, although this obviously increases construction costs. The importance of the sill, and the tide's height above it, is reflected by these dock sills becoming an important local datum level and for tide tables being calculated for heights above it (i.e. clear draught in and out of the dock). This importance has often continued for many years after the original sill had been replaced, as at Sharpness on the Severn Estuary, or where the dock had disappeared entirely, such as Old Dock Sill in Liverpool. == See also == * Floating dock, a dock where pumps are used to maintain the docks at a high level. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Half tide dock」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.