等待航線 的英文怎麼說

中文拼音 [děngdāihángxiàn]
等待航線 英文
holding pattern
  • : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
  • : 待動詞[口語] (停留) stay
  • : Ⅰ名詞(船) boat; shipⅡ動詞(航行) navigate (by water or air); sail
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • 等待 : wait; await
  • 航線 : air line; air route; route; airway; shipping line; way; itinerary; azimuth; pathway; trajectory; ...
  1. Such research can lead to a new flight procedure design methodology, which copes with these problems and makes strong economical senses. under the guidance of aviation safety, efficiency, regularity and economy, this thesis applies the principle of the instrument flight procedure, firstly, to research the current vor / dme instrument flight procedure, namely the vor / dme instrument flight procedure ( vor / dmf. ifp ), its holding procedures, departure routes, arrival routes, and approach procedures, cor the terminal airspace

    本文在安全、效率、正常和經濟的原則下,運用儀表飛行程序設計的思想和原則,首先對在vor / dme導臺上建立儀表進場程序、儀表進近程序和儀表離場機場空域內的飛行程序的設計方法進行了研究,總結出不同位置的vor / dme儀表飛行程序的布局形式、適用情況及其優缺點,並首次提出了以vor / dme為基準的封閉圓弧進近程序;其次,研究了基於vor / dme導臺的區域導飛行程序的設計方法;最後,研究了在現有的vor / dme儀表飛行程序上建立區域導飛行程序的設計方法。
  2. In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )

    主要研究內容包括:一、總結分析了當前水下導的常用方法和不足之處,指出基於位推算的導方法,存在著最大的問題就是導誤差的積累問題,如果沒有修正系統,這種方法很難滿足使用要求;其次指出基於聲學的導方法,造價昂貴,導范圍有限,難以滿足自主水下行器大范圍導的需求;二、總結了當前水下地形輔助導的主要技術路,一是基於地形高程的匹配方法,這是當前研究的重點;二是基於地形圖像的匹配方法,由於缺乏良好的圖像傳感器,和可用的海底圖像地圖,目前這種方法還有研究發展;三、將兩種地形高程匹配的常用方法應用到自主水下行器上:以相關演算法為前提的地形輪廓匹配( tercom )方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導( sitan )方法,前者演算法簡單可靠,但是導精度不高,後者雖然精度比較高,但存在著演算法較為復雜、有可能發散和出現奇異值問題。
  3. With the rapid development of civil aviation and the special situation of our country ' s airspace, there come to be some congestions of air traffic in some airspace

    同時,流量控制措施常常導致在起飛前的延遲、飛行中的、使用不經濟的飛行高度層,改班、打亂班機時刻多種負面影響。
  4. Expect 10 minutes holding, standard pattern over lq

    預期lq上空標準十分鐘。
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