空中交通密度 的英文怎麼說

中文拼音 [kōngzhōngjiāotōng]
空中交通密度 英文
air-traffic density
  • : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
  • : Ⅰ動詞1 (把事物轉移給有關方面) hand over; give up; deliver 2 (到某一時辰或季節) reach (a cert...
  • : 通量詞(用於動作)
  • : Ⅰ名詞1 (秘密) secret 2 [紡織] (密度) density 3 (姓氏) a surname Ⅱ形容詞1 (距離近; 空隙小)...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 空中 : in the sky; in the air; aerial; overhead; midair
  1. Based on the propagation law of the cross - spectral density function in the space - frequency domain, the properties of polychromatic vector gsm beams through a paraxial optical abcd system are studied. the analytical propagation expressions for the cross - spectral density matrix of vector gsm beams passing through a paraxial optical abcd system are derived, which permits us to study the propagation properties of vector gsm beams, including the propagation - induced polarization changes, effect of the spectrum bandwidth and irradiance distributions in a unique way. there are some applications of the theoretical results

    基於間一頻率域叉譜函數的傳輸理論,研究了多色矢量gsm光束過abcd光學系統傳輸時偏振特性的變化規律,首次推出了矢量高斯一謝爾模刑fgsm )光束過近軸abcd光學系統叉譜矩陣的傳輸公式,並對矢量gsm光束傳輸偏振的變化、譜寬的影響和強的分佈等進行了統一研究。
  2. On the other hand, the status quo of air transportation keeps increasing, altogether with the quick pace of the economy ' s going up. the density of airplanes in the sky is increasing, meanwhile, the distance between them are much smaller. therefore, it is pivotal to guarantee security of these airplanes

    加上我國幅員遼闊,改革開放以來,隨著經濟的持續快速增長,航運輸業的發展導致了流量的日益增大,使得飛機增加,間距縮小,因而安全問題十分突出。
  3. W is a digiul trunkin mobile cominunhaon system based on mma forhnology it offers group call diw w m wion ( dmo ), duplex phone tall, padri data sehece, short data service and so on. tetw supports air interface and end - bend encrypon. tem is not only a fit private system for dispateh cominedcation of the polieq fire servce " w ha wtport, city tiwhc eto, but also for ule project reqthements of the public tw communication system

    Tetra是一種基於時分復用( tdma )技術的數字集群移動信系統,它可以提供組呼調、脫網直( dmo ) 、企雙工電話、分組數據服務、數據簡訊息服務等業務,支持介面加和端到端加功能,既適合公安、消防、機場、鐵路、城市管理等專業部門調指揮專用,也可滿足社會共用集群網的設計要求。
  4. The spd model is made by the ins titute of geographical sciences and natural resources research of chinese academy of sciences. it combines social economic factors, such as city and transportation foundational facilities, with nature factors, for example the digital elevation model ( dem ) and net primary productivity ( npp ) of plants to simulate the spatial distribution of population density of china by the advanced grid generation technology

    國模擬人口模型是由國科學院地理科學與資源研究所首先提出的,這個模型試圖利用先進的格網生成技術,將城市、基礎設施等社會經濟因子和陸地數字高程( dem ) 、陸地植被凈第一性生產力( npp )等自然因子相結合,過模型的反演,模擬某一時期的國人口間分佈狀況。
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