水面導航 的英文怎麼說
中文拼音 [shuǐmiàndǎoháng]
水面導航
英文
surface navigation- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 導 : 動詞1. (引導) lead; guide 2. (傳導) transmit; conduct 3. (開導) instruct; teach; give guidance to
- 航 : Ⅰ名詞(船) boat; shipⅡ動詞(航行) navigate (by water or air); sail
- 水面 : the surface of the water; table水面操縱 surface manoeuvering; 水面導航 surface navigation; 水面發...
-
In this dissertation, through computer simulation, the problems of modeling, control and guidance of auvs are presented. the first part of this dissertation addresses the problem of dynamically modeling of auvs, and derives thrusters " two - dimension nonlinear dynamic model, which has axial flow speed and propeller rotational velocity as two state variables, voltage or current of motor as inputs, and thruster force and torque as output. the second part focuses on the nonlinear adaptive sliding mode control of auvs in diving plane and steering plane
本論文系統研究了自主式水下航行器的建模、非線性自適應滑模控制、以及深度調整和水平面導引方法等問題,具體成果和創新點如下1 、根據流體力學理論,建立了螺旋槳推進器的動態模型,它以螺旋槳來流速度v _ p和螺旋槳轉速n為狀態變量,以電機施加轉矩為輸入,螺旋槳推力t和轉矩q為輸出。The underwater topographic survey in lake dianchi employed the dual - frequency gps with rtk technology, which type is american trimble 4700, for horizontal positioning f and the type of the fathometer is wuxi haiying sdh - 13d ; the navigation software : the south 5. 0
對滇池水下地形測量外業數據的採集,平面定位採用美國trimble4700雙頻gps接收機;水深測量採用的測深儀為無錫海鷹sdh ? 13d ;導航軟體為南方公司的導航5 . 0版。As reported by the harbour master, h. g. thomsett in march 1873, the second - best sites, all within the jurisdiction of hong kong, were considered to be cape d aguilar, green island and cape collinson, as lighthouses in these places would cover the eastern entrance and the western entrance to hong kong
根據港務長h . g . thomsett一八七三年三月的報告,鶴咀、青洲和哥連臣角這三個地點雖屬次選,但全部位於香港水域,而地理上又能扼守香港東西兩面入口,為進港的船隻導航。Chinese type 33g guided missile submarine chinese navy type 33g guided - missile submarine were developed from russian romeo class submarine by wuchang shipyard in 1980 and was launched in 1983. type 33g entered to service in 1985 after which was successful test by the navy. the armament of this chinese first generation missile attack submarine are six c801 anti - ship missile and 8 533mm torpedo tubes, sometimes this submarine will carry 20pcs of sea mines to instead the torpedo for the action
該型艇在主尺度方面與33型潛艇相同,其不同之處是加裝了導彈,即在原33型潛艇上加裝了6具導彈發射筒6枚飛航式導彈,增加了自動測風儀方位水平儀和雷彈合用射擊指揮系統,改裝了雷達。Compared to the traditional technology, aviator no longer depends on the ground navigation facility but is able to flight along the precise track ; besides, airplane could land safely and accurately even under the worst visibility, which has greatly improve the safety level of flighting
與傳統技術相比,飛行員不必依賴地面導航設施即能沿著精準定位的航跡飛行,使飛機在能見度極差的條件下安全、精確地著陸,極大提高飛行的安全水平。The article, divided into 3 periods, describes the history of the development of zhujiang river ' s waterway transportation, and gives us a true picture of zhujiang river ' s waterway transportation in the following aspects : societal economy of zhujiang river valley, present conditions of fairway, harbors, ships and supporting & guarding systems such as waterway transportation industry, communication, piloting, and etc. the main contents include the characteristics of zhujiang river ' s layout, the fulfillments of zhujiang river ' s waterway transportation and the quantities of passengers and cargoes that zhujiang river carried, laying emphasis on the conveyance method and characteristics of zhujiang river as a main and important waterway transportation channel, and introducing characteristics of the fairway layout of the zhujiang river, present conditions of fairway grading structure, layout characteristics of the harbors in zhujiang river valley, harbor ' s handling capacity & container harbor ' s present situation, and gross tonnage & layout characteristics of shipping capacity of zhujiang river valley, ships " technical conditions and transportation methods
論文分三個階段論述了珠江航運發展的歷史沿革。從珠江流域社會經濟、航道、港口、船舶,以及水運工業、通訊導航等支持保障系統等方面論述了珠江航運的發展現狀,分析了珠江水系河流分佈特點,珠江航運生產,客貨運輸量,並重點論述珠江水系水運主通道和重要河道的運輸方式和運輸特點;珠江航道分佈特點、航道等級結構現狀;珠江水系港口分佈特點、港口吞吐量及集裝箱港口現狀;珠江水系船舶運力的總量、結構及分佈特點,船舶的技術狀況、運輸方式等。論文分析了珠江航運發展存在問題及制約因素,珠江航運發展存在的主要問題,一是內河航運建設資金投入不足;二是水資源未得到綜合利用;三是航運管理體制不順;四是技術裝備落後,限制了內河航運優勢的整體發揮。The main tasks of this thesis are : discussing the dead - reckoning theory of doppler velocity log and compass, decreasing location error methods, emulating several ship tracks ; discussing several aspects influencing the velocity precision of doppler velocity log ; in a pool trial, processing the trial data and achieving some conclusions
本論文主要研究工作包括:對羅經和多普勒計程儀推算輔助導航系統的工作原理,及減小定位誤差的兩種方法和幾種軌跡進行了研究;對影響多普勒計程儀測速誤差的各個方面進行了綜述;最後對多普勒計程儀水池試驗的數據進行了處理,得出所要結論。With the fund item sponsored by the national laboratory of hydrodynamics, the study on measurement method of propeller - induced pressure with using self - propulsion model has been carried out in depressurized towing tank
在脈動壓力的模型測試研究方面,本文在水動力學國家重點實驗室基金項目的資助下,對在減壓拖曳水池中利用自航模進行空泡螺旋槳誘導的脈動壓力的測試方法進行了研究。In light of the special natural conditions and project layout characteristics of xiangjiaba hydropower station, a stage diversion scheme with the left bank being closed at the first stage and the right bank closed at the second stage has been selected through comparison of several schemes under the consideration of the aspects such as construction layout, late - stage flood control, navigation during the construction, and the construction period before the commissioning of the first hydropower generating unit
摘要針對向家壩水電站特殊的自然條件和工程布置特點,其施工導流經過對多個方案進行比較,從施工布置、後期度汛、施工期通航、發電工期等方面考慮,選擇了第一期圍左岸、第二期圍右岸的分期導流方案。Abstract : this paper summarizes a series of tests and inve stigations on general layout, const ruction diversion, flood disposal, navigation, river closure, form of gate opening s ection, pattern of energy dissipation and scouring under sluice carried out for f eilaixia proj ect by the scientific research institute of prwrc during the period from 1983 to 1998 and presents their major results
文摘:綜合闡述了珠江水利委員會科學研究所從1983 ? 1998年間對飛來峽水利樞紐的整體布置、施工導流、泄洪、通航、截流、閘孔斷面形式、閘下消能形式、閘下沖刷等所進行的一系列試驗和研究工作,並介紹主要試驗研究成果。The paper discusses the development statlls of foreign u ' ljv completely and carefully, pedicularly introducing that of the ainerican w which includes the leading idea of american u ' uv development, the application field of ainerican navy ' s m the development target and planning of ainerican navy ' s un and the development of relative proects
本文對國外無人水下航行器發展進行了比較全面細致的論述,重點介紹了美國無人水下航行器的發展情況,其中包括美國發展uuv的指導思想;美海軍uuv應用領域;美國uuv的發展目標與發展計劃,及相關項目進展情況。Then it objectively discusses the unfavorable factors of western areas facing up to the western development after analyzing opportunities and challenges, which china ' s access to wto and the tenth five - year plan brings about. furthermore, on the basis of persisting in the principle of development of inland waterway transport, this paper forecasts the trends of development of inland waterway transport including the amount of passenger and freight transport in 2010 and the type of riverboat in western areas
第三,在分析了我國加入wto以及「十五」規劃給西部地區帶來的機遇和挑戰的基礎上,客觀地分析了我國西部地區面對西部大開發還存在的制約因素和不利條件。第四,本文全面分析了西部內河航運的發展趨勢,即在堅持西部地區內河航運發展原則和指導思想的基礎上,主要完成了對西部地區2010年水運客、貨運輸需求以及西部內河航運船型發展方向的分析。The attractions of tokyo s waterfront will be communicated to the public through various means : regional sightseeing maps that include information from the perspective of boat cruises will be made ; guidance and information signs will be installed ; and special waterside events will be co - organized
東京水邊地區具有吸引力的景觀也將會通過多種途徑與公眾見面:製作包括導航信息的地區景點圖安裝導航和信息標志以及共同組織水邊的特別集會活動。分享友人