navigational data 中文意思是什麼
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The beidou navigational system is characterized by the technical dominance of locating and navigation, data communication, noting time and also by the features of all - day - and - night long, totipotent, real time and continuity
北斗衛星定位導航系統是我國完全自主知識產權的軍民共用衛星定位導航系統，北斗導航系統具有集定位導航、數據通信、授時三大功能為一體的技術優勢和全天候、全能性、實時性、連續性的工作特點。 -
With the development of a flight preparation assisting system as an example, this paper gives a detailed account of the techniques and method of using electronic chart in general aviation flight preparation, including geographical information, navigational data and how to set up a performance databank for different types of aircraft as well as air route preparation and how to make flight plans, etc. which can be used for reference for developers of related systems
摘要以一個飛行準備輔助系統的開發為例，詳細介紹了電子航圖在通用航空飛行準備中的應用技術和方法，包括地理信息、航行資料和機型性能數據庫的建庫技術以及航線準備、飛行計劃制定方法等內容，可供相關系統的開發人員借鑒。 -
Besides os, with its vast and valuable map data, there are the uk hydrographic office ( which collects tidal and naval navigational data ), the highways agency ( which collects traffic data ) and even the european centre for medium range weather forecasting
除了坐擁大量地圖珍貴資料的全國地形測量局，還有收集潮汐和船隻航行資料的英國航道測量事務所，收及交通資料的高速公路局，甚至歐洲中期氣象預測中心。 -
Programmers can now search for data using sql or xquery, a new query language that supports navigational or path - based expressions
程序員現在可以使用sql或xquery搜索數據， xquery是一種新的查詢語言，支持導航（即基於路徑的）表達式。 -
The planned route is fixed according to sea area, ship condition and weather element. then we may correct the route, rudder and engine in the light of wind currency and obstacle as well as make control in accordance with actual state, economy and requirement to obtain the relevant avoidance data by using of ais or arpa and offer the corresponding navigational safe areas in connection with the various navigational areas and conditions
利用ais （ automaticidentificationsystem ，船舶自動識別系統）或arpa （自動雷達標繪儀）獲得相關的避讓數據，對相同海域航行的船舶態勢及船舶長度進行避航領域的推算，將其結果與實際調查的情況進行擬合和數據處理，針對不同的航行區域與條件，給出相應的航行安全領域。 -
The study comes from two projects - " the practical experiment of ship navigation and the simulation study of the shu - tong yangtze river road bridge " and " the study on the ship navigation of the yichang yangtze river railway bridge ". the data is from these practical experiment which includes z - model experiment of sea - going vessel and fleet, turning motion experiment, stroke experiment and encounter experiment between sea - going vessel and fleet. based on those, it calculates the track of the ship in the navigational waters according to the maneuverability and the response equation
本文結合導師課題， 「蘇通長江公路大橋船舶通航實船試驗及模擬研究」 ，和「宜萬鐵路宜昌長江鐵路大橋船舶通航問題研究」通過大量的實船試驗：海船及船隊的z型試驗、旋迴圈試驗、沖程試驗和海船及船隊在橋區的航行會船試驗等，以試驗的數據為依據進行理論分析、計算，然後根據船舶的操縱性能及操縱響應方程，計算船舶在橋區的運動要素及航跡。
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