航道信標 的英文怎麼說
中文拼音 [hángdàoxìnbiāo]
航道信標
英文
airway beacon-
To oversee all the details yourself in person ; to be at once pilot and captain, and owner and underwriter ; to buy and sell and keep the accounts ; to read every letter received, and write or read every letter sent ; to superintend the discharge of imports night and day ; to be upon many parts of the coast almost at the same time ? often the richest freight will be discharged upon a jersey shore ; ? to be your own telegraph, unweariedly sweeping the horizon, speaking all passing vessels bound coastwise ; to keep up a steady despatch of commodities, for the supply of such a distant and exorbitant market ; to keep yourself informed of the state of the markets, prospects of war and peace everywhere, and anticipate the tendencies of trade and civilization ? taking advantage of the results of all exploring expeditions, using new passages and all improvements in navigation ; ? charts to be studied, the position of reefs and new lights and buoys to be ascertained, and ever, and ever, the logarithmic tables to be corrected, for by the error of some calculator the vessel often splits upon a rock that should have reached a friendly pier ? there is the untold fate of la prouse ; ? universal science to be kept pace with, studying the lives of all great discoverers and navigators, great adventurers and merchants, from hanno and the phoenicians down to our day ; in fine, account of stock to be taken from time to time, to know how you stand
親自照顧一切大小事務；兼任領航員與船長，業主與保險商；買進賣出又記賬；收到的信件每封都讀過，發出的信件每封都親自撰寫或審閱；日夜監督進口貨的卸落；幾乎在海岸上的許多地方，你都同時出現了似的； ? ?那裝貨最多的船總是在澤西岸上卸落的； ? ?自己還兼電報員，不知疲倦地發通訊到遠方去，和所有馳向海岸的船隻聯絡；穩當地售出貨物，供給遠方的一個無饜足的市場，既要熟悉行情，你還要明了各處的戰爭與和平的情況，預測貿易和文明的趨向； ? ?利用所有探險的成果，走最新的航道，利用一切航海技術上的進步； ? ?再要研究海圖，確定珊瑚礁和新的燈塔、浮標的位置，而航海圖表是永遠地改而又改，因為著計算上有了一點錯誤，船隻會沖撞在一塊巖石上而至於粉碎的，不然它早該到達了一個友好的碼頭了? ? ，此外，還有拉?貝魯斯的未知的命運； ? ?還得步步跟上字宙科學，要研究一切偉大的發現者、航海家、探險家和商人，從迦探險家飯能和腓尼基人直到現在所有這些人的一生，最後，時刻要記錄棧房中的貨物，你才知道自己處于什麼位置上。In the stage of the sun and the moon in sight, azimuth of the sun, the earth and the moon in the spacecraft body coordinate system is simulated. combining the simulated azimuth with the ephemeris of the sun and the moon, the state equation and observation equation are modeled. the initial orbital parameters calculated by least square method are used in orbit state equation to predict spacecraft state and to realize autonomous navigation
在日月可見階段，模擬日、地、月敏感器測量信息，即日、地、月在航天器本體坐標系下的方位信息，結合日月星歷，建立狀態方程及觀測方程，通過最小二乘法得到歷元時刻的軌道狀態初始值，將其代入軌道狀態方程進行自主導航。The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering
本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。The optical - electronic measurement and control system is a main part of missile and space measurement and control system. it can get the information, trajectory parameter and characteristic parameter of the target by optical principle
光電測控系統主要指以光學原理採集飛行目標信息，經處理得到所需彈道參數與目標特性參數，並獲取飛行實況圖像資料的專用測控系統，是導彈、航天測控體系的重要組成部分。A standard radio navigational beacon installed at the southwest end of the runway promontory to provide track guidance to aircraft departing from the runway. integrated centralised monitoring system ( icms )
這是一臺標準的無線電導航信標，裝置在跑道的西南端，用以提供航跡指引給起飛的航機使用。Jiangsu yizheng nonwoven factory adheres to the quality target " continuing improvement, taking the lead at every step, the only standard is the customer s satisfaction ". we will keep abreast with the times and offer the first class service to our customers. the experience of our long years has convinced us that yanmei brand geotextiles product series will make greater contributions to irrigation, transportation, ports, courses, railways and city environment protection
江蘇省儀征無紡布廠恪守「持續改進、爭步步領先；唯一標準、讓客戶滿意」的質量方針，與時俱進，以一流的產品為用戶提供一流的服務，多年來的成功經驗使我們堅信「雁梅」牌土工合成材料系列產品將為水利、交通、港口、航道、鐵路、城市環境保護建設等作出更大的貢獻。分享友人