放起落架著陸 的英文怎麼說

中文拼音 [fàngqǐlàjiàzhāoliù]
放起落架著陸 英文
wheels-down landing
  • 放 : releaseset freelet go
  • 起 : 起Ⅰ動詞1 （站起; 坐起） rise; get up; stand up 2 （取出; 取走） draw out; remove; extract; pull 3...
  • 落 : 落名詞[方言] （北方對蓮花落的俗稱） a kind of folk song
  • 架 : Ⅰ名詞1 （用來放置東西或支撐物體等的東西; 架子） frame; rack; shelf; stand 2 （毆打; 爭吵） fight;...
  • 著 : 著助詞1. （表示動作的持續） 2. （表示狀態的持續） 3. （用在動詞或表示程度的形容詞後面, 加強命令或囑咐的語氣） 4. （加在某些動詞後面, 使變成介詞）
  • 陸 : 陸數詞（六的大寫） six （used for the numeral 六 on cheques, etc. to avoid mistakes or alterations）
  • 起落架 : [航空] alighting carriage; landing gear; alighting gear; undercarriage
  • 起落 : rise and fall; up and down起落場地 [工業] pad; 起落跑道 landing strip; 起落區 landing strip; 起落...
  • 著陸 : landing; land; touch down
  1. A large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning

    應用由111個傳聲器組成的平面傳聲器陣列對當前流行的民用客機進場著陸過程中的機體噪聲源進行了實驗測量，本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析，得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現，起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的單音噪聲源組成，起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大，這說明可以通過重新結構設計降低起落架噪聲。
  2. Abstract : a large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning

    文摘:應用由111個傳聲器組成的平面傳聲器陣列對當前流行的民用客機進場著陸過程中的機體噪聲源進行了實驗測量，本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析，得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現，起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的單音噪聲源組成，起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大，這說明可以通過重新結構設計降低起落架噪聲。
  3. We had done all the emergency procedure but still can not put down ( extend ) the gear, we got only 30 minutes fuel, so we decide to make a belly landing in your field

    所有的應急程序已做過了，但仍不能放下起落架，我們僅剩30分鐘的油量，所以我們決定在你們的機場做機腹著陸。
分享友人
分享到 Line

分享到臉書