寬體飛機 的英文怎麼說
中文拼音 [kuāntǐfēijī]
寬體飛機
英文
wide-bodied aircraft-
The modern wide - bodied jetliner is very large. inside, it looks more like a great theatre than ( like ) a plane
現代寬體噴氣式客機是很大的。它的內部與其說像一架飛機,倒不如說像一座大劇場。Second to this, the flexibility in operation is good for airlines to adjust their fleet structure. and, aircraft leasing can accelerate the development of charter service, which is very important for civil aviation
其次,利用飛機租賃生產經營的靈活性調整國內航空公司機隊結構的不合理,改變國內寬體機比例過高、飛機利用率低下、成本高且不合理等問題,認為選擇飛機租賃是一種經濟靈活的改變機隊結構的有效手段。With the development of science and technology, more and more oxide crystals are synthesized by more and more advanced technique, the new oxide crystals are incessantly synthesized and the new characters of oxide crystals are incessantly founded. corundum dopped with impurity not only is cherished because of it ' s beautiful appearance, but also is used in the fields such as electrotechnics, mechanism, laser, the optic apparatus and the underlay of semiconductor. sapphire dopped with ti3 + is the best material of the tunable solid laser. zno crystal is material of the direct gap semiconductor ( the width of forbidden band : 3. 37ev ). the excited emission in zno crystal at room temperature has been found, so the ultraviolet luminescence in zno semiconductor can be acquired at room temperature
含有少量雜質的剛玉晶體( - al _ 2o _ 3 )不僅由於其色澤艷麗成為人們珍愛的名貴寶石,而且由於它具有的優異性能,被廣泛應用於電工、機械、激光器,光學器件和半導體襯底材料。鈦藍寶石是目前最優異的固體寬帶調諧激光材料,用於製作飛秒脈沖可調諧激光器。氧化鋅晶體是直接帶隙寬禁帶半導體材料(禁帶寬度3 . 37ev ) ,現已發現具有室溫下受激發射特性,有可能實現室溫下半導體紫外發光。On the basis of this theory, the applications of the sdr structure of wideband and bandpass sampling in if ( intermediate frequency ) in flight test were offered : increase the sampling in if ( intermediate frequency ) in flight test were offered : increase the capacity of the transmitter and the terminal receiver channels without changing the apparatus of original system and on the conditions of obeying the standard remote sensing
首先對軟體無線電的組成結構和飛行測試中實際使用的通道進行了闡述,在此基礎上提出了基於寬帶中頻帶通采樣軟體無線電結構在飛行遙測測試中的應用,在不改變原系統設備的情況下,在遵守遙測標準的前提下,提出增加機載發射機和接收機通道容量的設計方案。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。On 26th october 2006, china aviation supplies import and export group corporation ( casgc ) signed a general terms agreement ( gta ) for the purchase of 150 a320 family aircraft and a letter of intent ( loi ) for 20 a350xwb aircraft with airbus in beijing
2006年10月26日,空中客車公司與中國航空器材進出口集團公司在北京簽署了訂購150架空中客車a320系列飛機的框架協議和訂購20架a350寬體飛機的意向書。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。With the rapid development of computer, wideband network and ic technologies, multimedia communications become the development focus of world information network technology
隨著計算機、寬帶網路技術和集成電路技術的飛速發展,多媒體通信成為世界信息網路發展中的熱點。Many asian low - cost airlines are opting not only for wide - bodied aircraft but also for a two - class model to lure business customers away from established carriers
許多亞洲低成本航空公司不僅選擇寬體機型,而且還購買兩艙飛機,以便從老牌運營商那裡吸引商務乘客。111c dcvclopment of broildband access net vork wi1l be affected. that is the reason why we devc1op the br ( ) udbi111d nct ' ork access scl ' ver ( bnas ). as a new style nct ' ' ork access gateway, bnas lics on thc boi ' dct ( ) 1 - nctworlt backbone, it handles 1he connection tequcst of broadband access users, auti1cnticating
隨著計算機、通信技術及因特網應用的飛速發展及因特網應用的多媒體化,因特網骨幹網的帶寬正在以極快的速率增長,而用戶接入速率低的瓶頸,也正隨著各種寬帶接入技術( lan 、 xdsl 、 hfc 、 lmds )的逐漸應用而得到解決。分享友人