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- America and Germany do well in inland river navigation. 美國和德國是內河航運強國。
- This method is used to calculate the minimum working altitude of AN-APN-220C Doppler navigation radar. 推導出最小起量高度的簡(jiǎn)捷而實(shí)用的計算方法;用此方法計算了AN-APN220C多普勒雷達的最小起量高度.
- This paper analyses in detail the signal relation of Doppler navigation radar altitude system which adopts automatic cycle calibration technique during self calibration. 本文詳細分析了采用周期自動(dòng)校準技術(shù)的多普勒導航雷達測高裝置自校時(shí)的信號關(guān)系。
- By tombigbee Gulf River navigable. 由湯比格比河通航墨西哥灣。
- A virtual instrument based integrated measurement system for Doppler navigation radar is developed. Using direct digital synthesis(DDS)technique,a kind of radar Doppler frequency simulator is introduced. 分析了機載四波束多普勒測速雷達的工作原理,采用直接數字頻率合成(DDS)技術(shù)進(jìn)行多普勒頻移模擬器的設計,通過(guò)數字控制,該模擬器可以產(chǎn)生高分辨率的多普勒頻率信號；
- As an advanced specialized transportation mode, the containerized traffic in Yangtze River has developed for nearly 20years, and become a bright point in Yangtze River navigation. 長(cháng)江集裝箱運輸作為一種先進(jìn)的專(zhuān)業(yè)化運輸方式，近二十年來(lái)發(fā)展迅猛，已成為長(cháng)江航運的一個(gè)亮點(diǎn)。
- Inland river navigation is an important component of comprehensive transportation system.It has no commutable advantages and actions in transporting bulk cargo. 內河航運是我國綜合運輸體系中的重要組成部分，在大宗貨物運輸中具有不可替代的優(yōu)勢和作用。
- Radio Navigation Radar and Remote Control Aid 無(wú)線(xiàn)電導航雷達及遙控設備
- Navigation is difficult on this river because of the hidden rocks. 因為河上有暗礁，所以在這條河上航行很困難。
- Aeronautical Radio Navigation Radar 航空無(wú)線(xiàn)電導航雷達
- Target Identification Navigation Radar 目標識別導航雷達
- Arkansas River Navigation System 阿肯色河航行系統
- The Columbia River Navigation Channel 最近宣布,哥倫比亞河道
- management of boundary river navigation 界河航行管理
- Target Tracking Realization of an Embedded Navigation Radar System 嵌入式船載導航雷達系統目標跟蹤的實(shí)現
- inland river navigation standard 內河通航標準
- Man-made channels make the river navigable for 180 miles upstream of San Francisco Bay; ocean-going ships travel as far inland as the City of Sacramento. 人工運河使該河溯流至舊金山海灣的180英里都適于航行;入海船航行在薩克拉曼多如同置身于遠方內陸。
- Integrated Measurement System Design of Doppler Navigation Radar System 機載多普勒導航雷達綜合檢測系統設計
- The river had worn a ravine between the hills. 那條河在兩山之間已造成一個(gè)深谷。
- Can we dredge the river to make it deeper? 我們能不能把這條河疏浚得深一點(diǎn)？
