飛機利用率 的英文怎麼說
中文拼音 [fēijīlìyònglǜ]
飛機利用率
英文
airplane efficiency factor-
Sicp / al matrix composites, with 5, 15 and 25 % volume fraction of sic particles, were prepared by vacuum hot - pressing sintering processing in this paper. based on mechanics properties, sem observation and energy dispersive x - ray analysis, the interface reaction phenomenon of sicp / al composites made by vacuum hot - pressing sintering, as well as the reinforcement and fracture mechanisms of this composite were analyzed. the dynamic responses of sipc / al composites were studied by a split hopkinson high - speed pressure bar impact system which strain rate was from quasistatic state strain rate ( 3. 3 10 - 3s - 1 ) to dynamic state strain rate ( 5. 2 103 s - 1 )
本研究以武裝直升飛機防護裝甲材料為研究對象,採用真空熱壓粉末冶金燒結工藝制備了含sic顆粒體積分數分別為5 、 15和25的sic顆粒增強鋁基復合材料,結合其力學性能、掃描電鏡和界面微區能譜分析結果,分析了sic _ p al復合材料的真空燒結過程中的界面現象,以及材料增強和斷裂機理,並利用hopkinson高速壓桿沖擊實驗系統對其從靜態到動態(應變率為3 . 3 10 ~ ( - 3 ) s ~ ( - 1 ) 5 . 2 10 ~ 3s ~ ( - 1 ) )的壓縮破壞響應進行了研究,分析了不同體積分數sic _ p al復合材料高應變率壓縮載荷下,材料的變形和微觀損傷機理,以及利用高速沖擊空氣炮測定了改復合材料制備剃度復合板的穿透性能。The mission is to promote and advance the common interests of the commercial aerial fire fighting industry for the purposes of enhancing the long term stability and well being of the industry, and improving its effectiveness, safety, maintenance standards and aircraft availability
協會任務是提高和增加商務性空中消防工業的共同利益,目的是鞏固工業的長期穩定與繁榮,提高其效率性、安全性、維修標準和飛機的可利用性。The armor plate is a product of no cutting bits, holding the advantages that being high usingrate, firmintensity, slippery proof, easy to fix, durability and breezy, ectc. it can be used as motoway partition, air field runway and used for mine, dock, working platformand so on
篩網作為一種無切屑產品,其鋼板利用率高,強度牢固,具有防滑、通風性能好、施工方便、經久耐用等優點;用於高速公路建築、大型飛機楊跑道、礦井、碼頭、工作平臺、隔離等。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 argumentation system and differential system, gnss is capable of supporting en route flight and cat iii precision approach. this system can meet the need of all flight phases in terms of integrity, precision and continuity. with the application of area navigation and required navigation performance ( rnp ), this would make the parallel route, random route and direct flight route possible, and also improves the efficiency of air space and the flight safety
在導航系統中,全球衛星導航系統是其主要成分,通過增強系統和差分技術, gnss具有支持從航路飛行到類精密進近的能力,在完好性、精度、可用性、連續性上都可以滿足飛行各階段的要求;隨著區域導航和所需導航性能的實施,平行航路、隨機航路和起點和終點之間的大圓航線直飛得以實現,提高了空域利用率和飛行安全。E ) lack of foresight on finance lease scheme, which causes irrational tenor structure and imbalanced annual outflow of rental payments, results in funding costly. to solve aforesaid problems, thesis finds out the following principles for optimizing ca ' s aircraft finance : a ) determining the volume and currencies of ca ' s cross - border aircraft finance based on the annual outflow of foreign debt repayments and annual net inflow of foreign exchange, so are the dominated currencies in debt. b ) enlarging the portion of borrowings at floating interest rate in ca ' s whole foreign debt
針對以上存在主要問題,本文進一步提出了優化飛機融資的總體構想,包括:根據其每年的外匯流入總量及幣種構成確定國航合理的飛機境外融資規模應與負債幣種;在利率結構方面,擴大浮動利率在整個國航外債中的比重,選擇適當時機將部分固定利率貸款轉換為浮動利率貸款;在飛機引進多元化方面,通過與飛機製造廠商、出租公司飛機互換的方式優化機隊構成,結合提前中止現有飛機租賃就能夠起到優化債務結構和機隊構成的事半功倍的效果,以及在未來飛機融資中優先使用經營性租賃等。Designed according to gmp standard and wholly made of stainless steel, this machine has no flying dust during production, and can improve the utilization rate of material and reduce the cost of enterprise, thus reaching the international advanced level
該機按「 gmp 」標準設計,全部採用不銹鋼材製造,生產過程中無粉塵飛揚,能提高物料的利用率,降低企業成本,目前已達到國際先進水平。Designed according to gmp standard and wholly made of stain - less steel, this machine has no flying dust during production, and can improve the utilization rate of material and reduce the cost of enter - prise, thus reaching the international advanced level
該機按「 gmp 」標準設計,全部用不銹鋼材料製造,生產過程中無粉塵飛揚,且能提高物料的利用率,降低企業成本,目前已達國際先進水平。The mo - dified first - come - first - served algorithm, time - adva nc e algorithm and constrained position - shift algorithm are put forward to automat ically plan the most efficient landing order, to assign optimal spaced landing times to all arrivals without violate the spacing requirements for different typ es of aircraft and to enhance the usage of the runway under heavy traffic condit ion in the terminal area
為了能夠在終端區交通繁忙的情況下高效地為到達的飛機流安排合理的著陸次序,並在不違反飛機間距要求的情況下給出各飛機經過優化的著陸時間,提高機場跑道的利用率,提出了經過改進的先來先服務、帶有時間提前量、帶有約束的位置偏移三種排序演算法。It makes full use of the terrain shelter and the characteristic of the earth ' s curvatures to improve viability of aircrafts
它充分利用地形遮蔽和地球曲率對敵方雷達等探測系統影響的特點,減小飛行器遭到打擊的機會,提高突防飛行器的生存概率。Based on research of theory and methods, this thesis presents design scheme of the dynamic fault tree analysis platform dfta and implement the platform ; practices a dynamic fault tree analysis example of boeing 707 plane engine oil indication system and alarm system on the platform and gets top event occurrence rate 、 minimal cut sequence 、 probability importance sequence 、 structure importance sequence and critical importance sequence and presents system improvement suggestion based on the analysis results
在理論方法研究的基礎上,本文提出了動態故障樹分析平臺dfta的設計方案,並進行了實現;利用該軟體對波音707飛機發動機滑油壓力指示和警告系統進行了動態故障樹實例分析,得到了頂事件發生概率、最小順序割集、概率重要度排序、結構重要度排序、關鍵重要度排序等分析結果,並根據上述分析結果提出了系統設計改進建議。As part of the initiative to further optimise airspace utilisation by reducing the vertical separation standard between suitably equipped aircraft flying at altitudes above 29, 000 feet, hong kong will implement reduced vertical separation minima ( rvsm ) in october 2002. the new standard will enable more efficient aircraft operations, achieve better fuel economy and help to minimise ground delay. sufficient training on the new procedures will be provided to air traffic controllers before the implementation of rvsm
為了充分利用飛行空域,香港將於二零零二年十月實施降低垂直間距的規定,把配備適當儀器和在29000尺以上高度飛行的飛機之間的垂直間距降低。新的標準會使飛機運作更有效率,既可節省燃料,亦有助減少延誤。在實施有關降低垂直間距的規定前,航空交通管制員都會接受有關新程序的訓練,充分作好準備。Frequency sweep flight technique is used to collect the flight data of a model helicopter near its hover and low speed working condition, window frequency spectrum is combined to obtain the frequency response of both lateral and longitudinal channels, then weighted fitting method is utilized to obtain the transfer functions of the two channel
摘要利用掃頻試飛技術獲取了某無人直升機在懸停工作點附近的舵機輸入和直升機動態輸出數據,利用組合窗頻譜分析的方法獲取了直升機橫滾通道與俯仰通道動態的頻率響應特性,利用加權擬合的方法獲取了各自的傳遞函數。While the scientific technology developing at a tremendous speed, the level of hydro - generator manufacturing is increasing. now the f - class insulation standard for generator is adopted, and cad for hydraulic design has spread, and advanced theory in hydraulic design is applied, and insulation materials are discovered, and precise processing techniques are under research. in the hydroelectric industry it ' s necessary to increase the generating units " installed capacity to take advantage of an old power plant and to raise the utilization ratio of water power energy
隨著科學技術的飛速發展,水力發電機的生產製造水平日益提高, f級絕緣在電機中的運用;計算機cad輔助水力設計的推廣,先進的水力設計理論的應用,新的電氣絕緣材料的發現,精密的加工工藝的研究,為了提高水能利用率,使老電站煥發青春,機組增容改造已是水電事業發展中一項不容忽視的工作。This paper studies optimal helicopter flight operations in the event one - engine failure. a three - dimensional point mass with a yawing motion of uh - 60a has been used to study rto and cto from an elevated heliport or from a heliport, a first order dynamic of the oei contingency power is considered. flight after engine failure are formulated as nonlinear optimal control problems
雙發及多發直升機單發失效后,直升機飛行所需要的功率由剩餘發動機提供,而在某些需要大功率的飛行狀態時,如起飛狀態、著陸狀態等,剩餘發動機提供的功率可能滿足不了,這就需要對剩餘發動機的可用功率進行合理利用。Firstly, this paper summarizes modern weaponry stealth technology at home and abroad, and lays special emphasis on analyzing stealth problem of cruise missile ’ s guidance head cover, aerocraft radar canopy and other privileged sites. secondly it makes a research on related theories of transparent metallic mesh that applied to missile ’ s guidance head cover and aerocraft radar canopy, and deduces relational expression between transparent metallic mesh structural parameters and radar wave - shielding efficiency, infrared transmitting. we use laser direct writing technique to fabricate a metallic mesh ( dimension : 70mm 70mm ; line width : 5 m ; period : 350 m ) on glass surface, then do experiment to test radar wave - shielding of metallic mesh via radar transmitting and receiving device
本文首先綜述了國內外現代武器系統隱身技術方法;重點對巡航導彈導引頭罩和飛機雷達艙罩等特殊部位的隱身問題進行了研究,研究了金屬網柵用於導彈頭罩和飛機雷達艙罩隱身的相關理論,推導了金屬網柵結構參數對雷達波屏蔽效率和透紅外關系式;用激光直寫工藝,在玻璃表面上製作了一塊面積為70mm 70mm ,線寬為5 m ,線周期為350 m的金屬網柵;在實驗室里用雷達發射和接收裝置測試了網柵對雷達波的屏蔽實驗;認為利用金屬網柵技術對雷達波具有一定的屏蔽作用,而且不影響精確制導的紅外線高效透過。In the surveillance system of cns / atm, secondary surveillance radar ( ssr ) is used in busy air space, and automatic dependent surveillance ( ads ) is used in other air spaces. ssr and ads can also be integrated. and ads can improve the efficiency of air space in the areas of ocean and desert where there is less flight route and large separation between aircrafts
在新航行系統的監視系統中,主要發展雷達監視和自動相關監視,在繁忙空域採用二次雷達監視,其它空域採用自動相關監視,並且可以實現二者的數據耦合;通過自動相關監視,可以克服海洋、荒漠空域航線少,飛機間隔大的缺點,提高空域利用率。Safety, on - time reliability, convenience in terms of airport proximity of seat availability, frequency of departures, in - flight cabin services, ground services including ticketing and baggage handing, aircraft type, and even the carrier ' s image are part of the airline product
安全性、準時性、舒適性體現在以下方面,像機場臨近、座位可利用率、起飛頻率、機艙服務、地面服務包括訂票和行李搬運、機型甚至是承運人形象都是航空企業產品的一部分。With the rapid economic development of our country, it is urgent that for the computer - controlled axis - counting systems to be used in railway regions. the nationalization of it will not only improve the availability of railway regions, but also save a lot of foreign exchanges
隨著我國經濟的飛速發展,微機計軸系統用於鐵路區間控制顯的越來越迫切,其國產化不僅能大幅度提高鐵路區段的利用率,同時還能節約大量外匯。Following by the quick technology development, new machine fabricate system is becoming automatic, integrated and flexible. in order to ensure the safety of equipment and workpiece, avoid some accident, increase productivity and machine ' s utilization, monitoring and fault diagnosis are needed
近十多年來,由於科學技術的飛速發展,現代機械製造系統正朝著高自動化、高集成化和高柔性化的方向發展,為保證現代機械製造系統中的自動加工設備與工件的安全,避免重大事故,提高生產率和機床利用率,必須採用監控和故障診斷技術加強設備的運行管理。分享友人