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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク List of Roman canals ： ウィキペディア英語版 List of Roman canals This is a list of Roman canals. Roman canals were typically multi-purpose structures, intended for irrigation, drainage, land reclamation, flood control and navigation where feasible. This list focuses on the larger canals, particularly navigational canals, as recorded by ancient geographers and still traceable by modern archaeology. Channels which served the needs of urban water supply are covered at the List of aqueducts in the Roman Empire. Greek engineers were the first to use canal locks, by which they regulated the water flow in the Ancient Suez Canal as early as the 3rd century BC.〔Moore 1950, pp. 99–101〕〔Froriep 1986, p. 46〕〔Schörner 2000, pp. 33–35〕 The Romans under Trajan too secured the entrance to the Red Sea with sluice gates, while they extended the canal south to the height of modern Cairo in order to improve its water inflow.〔Schörner 2000, pp. 36〕 The existence of ancient pound locks to bridge height gaps has been proposed by a number of authors,〔Moore 1950, pp. 98ff.〕〔Froriep 1986, p. 46〕〔Schörner 2000, pp. 39〕 but in the absence of clear archaeological evidence the question seems to be permanently undecided.〔Wikander 2000, p. 326〕 == Canals == By chronological order: 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「List of Roman canals」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.