雷場通道 的英文怎麼說
中文拼音 [léichǎngtōngdào]
雷場通道
英文
minefield lane- 雷 : 1. (雲層放電時發出的響聲) thunder 2. (軍事上用的爆炸武器) mine 3. (姓氏) a surname
- 場 : 場Ⅰ名詞1 (平坦的空地 多用來翻曬糧食 碾軋穀物) a level open space; threshing ground 2 [方言] (...
- 通 : 通量詞(用於動作)
- 道 : Ⅰ名詞(道路) road; way; route; path 2 (水流通過的途徑) channel; course 3 (方向; 方法; 道理) ...
- 雷場 : minefield
- 通道 : thoroughfare; passageway; pass; enterclose; gallery; drong; tunnel; avenue; alure; way; row; key ...
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The main research advances can be summarized as follows : ( 1 ) study the signal processing ' s performances and methods of homing torpedo system comprehensively, in order to setting up a corresponding mathematical models ; ( 2 ) analyze the ocean channel ' s effects on the work of homing system, then found some models such as target echo signal, noise ( including background noise, target radiating noise, etc ), ocean reverberation. according to them, simulate the array signal ; ( 3 ) the system structure, every function blocks composing are studied and founded thoroughly. then, discuss methods of signal processing in time domain and airspace domain ; ( 4 ) program the simulation software of torpedo ' s homing system according to the simulation models and flow charts, which connected with torpedo ' s control part
本文所作的主要工作及研究成果主要有以下幾個方面: ( 1 )對自導工作過程中的信號與信息處理的基本理論與方法進行了較為全面的研究,為建立一個較為完備的自導模擬系統提供了理論基礎; ( 2 )討論了自導系統工作過程中海洋通道對目標回波信號與目標輻射噪聲信號等的影響,建立回波信號的數學模型、環境場中的噪聲信號模型(包括海洋環境噪聲、目標輻射噪聲與魚雷背景噪聲等)與海洋混響模型,模擬產生了聲自導系統基陣接收到的回波信號與噪聲信號; ( 3 )深入研究並建立了自導模擬系統的總體框架,給出各個具體功能模塊組成,討論了聲自導系統對信號的時域與空域處理,並結合模擬程序中陣列信號處理模塊,給出固定多通道波束形成的模擬實現過程; ( 4 )根據系統的模擬模型與已建立的模擬流程圖編制了通用魚雷模擬器自導系統模擬軟體,通過網路與控制系統相連,組成完整的魚雷模擬器。From the beginning of 1992 to the end of 1994, the pla conducted its first large - scale demining operation in the border areas of yunnan province and the guangxi zhuang autonomous region, cleared a total of over one million landmines and explosive devices and destroyed nearly 200 tons of disused or de - activated ammunitions and explosive devices, covering an area of 108 square kilometers with over 170 border trade passes and ports re - opened, and over 30, 000 hectares of farmland, pasture and mountain forests restored
1992年初至1994年底,中國軍隊在雲南省和廣西壯族自治區邊境地區,組織實施了第一次大規模掃雷行動,共排除各種地雷和爆炸物100多萬枚,銷毀廢舊彈藥及爆炸物品近200噸,完成掃雷面積108平方公里,打通邊貿通道、口岸170多個;恢復棄耕地、棄荒牧場和山林3萬多公頃。Starting united both at normal walking pace from beresford place they followed in the order named lower and middle gardiner streets and mountjoy square, west : then, at reduced pace, each bearing left, gardiner s place by an inadvertance as far as the farther corner of temple street, north : then at reduced pace with interruptions of halt, bearing right, temple street, north, as far as hardwicke place
他們都是用正常的步行速度從貝雷斯福德廣場出發,按照下中加德納街的順序走到蒙喬伊廣場西端。隨後放慢步伐一道向左拐,漫不經心地來到加德納廣場盡頭,這里是通向北邊坦普爾街的交叉口。隨后朝右拐,時而停下腳步,緩慢地沿著但普爾街往北走去,一直來到哈德威克街1 。The blade inner channel cooling is a complex convection - conduction coupling problem. this thesis build a three - dimension. compressible turbulence model, and give a general solve method. with the geometrical model of the glossily rectangle straight channel, the rectangle straight channel with in - line arrays disturb plates, the rectangle straight channel with staggered arrays disturb plates, the rectangle straight channel with slant disturb plates, this thesis compute the flow and heat transfer condition when the cold air path though these channels, and gain the temperature field, pressure field, velocity filed, in addition. this thesis also analyze the influence of the different channel height, the different channel materials, the different channels, and gain the function relation between he nusselt number, friction factor and reynolds number. this thesis is emphasis on the new heat transfer enhancement structure, that is, disturb plates, with the comparison with the glossily channel and channel with pin fins, the heat transfer enhancement effect of the former is better, and the conclusion can be used in the design of aircraft blade
葉片內部通道冷卻是一個復雜的對流?導熱耦合傳熱問題,本文在分析葉片內部通道冷卻的流動與傳熱情況的基礎上,建立了三維、可壓縮紊流的物理模型,得到了通用的求解辦法;利用不帶擾流片的矩形直通道、帶順排擾流片矩形直通道、帶叉排擾流片、帶傾斜擾流片的矩形直通道的幾何模型,計算了冷卻空氣通過這幾種通道時的流動與換熱情況,得到了各種不同情況下計算區域的溫度場、壓力場、速度場;在此基礎上分析了不同的通道高度、不同的葉片通道材質對葉片內部通道冷卻的影響,並整理得到了各種通道形式下,努謝爾數和阻力因子與雷諾數的函數關系;本文重點研究了新型的葉片內部通道冷卻強化傳熱措施?帶擾流片的內部冷卻通道的強化傳熱效果,通過與光滑矩形直通道、帶針肋通道的冷卻效果的比較,表明了這種新型鮚構的優勢,對于葉片內部通道冷卻結構的設計可以起到指導的作用。According supermarket for leading, high tech content, high adding science and technology for core, insist on innovation style, science and technology style, intensivism style ' s corporation development road, by getting up the corporation ' s core competitive power, to let the career of sunry always young
以市場為導向,以建設高技術含量、高附加值的科技項目為核心,堅持走創新型、科技型、集約型的企業發展道路,通過提升企業核心競爭力,實現聖雷事業基業長青!Heroin peddling were carried out around canton road and waterloo road, and the neighbouring tai fat store and the first floor of the tai loy restaurant were used for meetings, dispensing bribes, and as a general command centre. the rear lanes surrounding the area and alleys inside the fruit market were the preferred drug transaction points. occasionally the syndicate would hide small packets of " white powder " in the counter on the first floor of the tai loy to be picked up by the " field mines " - drug carriers who solicited business in the streets
他們盤據廣東道與窩打老道一帶,利用相鄰的大發士多和大來酒樓大來二樓作為通訊及聯絡中心,附近的橫巷和果欄就是毒品交易的場地他們間中也會將小量白粉存於大來二樓的櫃臺,方便地雷即販毒集團內專責帶毒的計取用。The measurements of discharge coefficients and pressure coefficients along the models with aspect ratios of 0. 5, 1. 0 and 2. 0 were carried out under various aerodynamic and geometric parameters ( reynolds numbers : 20000, 40000, 60000, 80000 ; suction rates : 0. 3, 0. 45 and 0. 6 ; rib angles : 45, 60, 90, 120 ; rib height - to - width ratio h / e : 1. 0 and 2. 0 ; film hole location : middle of ribs. upstream of ribs and downstream of ribs ). based on the abundant experimental data and figures, rules of discharge coefficients and pressure coefficients in dependence of geometric and aerodynamic parameters were given out
根據實驗課題的要求,在寬高比分別為1 . 0 、 2 . 0和0 . 5的內流冷卻通道里,在不同的氣動和幾何參數(雷諾數re分別為20000 、 40000 、 60000 、 80000 ,出流比sr為0 . 3 、 0 . 45和0 . 6 ,肋角分別為45 、 60 、 90 、 120 ,肋高h e分別為1 . 0和2 . 0 ,孔位分別為肋中間、肋下游和肋上游)的情況下,對流量系數和壓力系數以及流場進行了實驗研究,獲得了大量的實驗數據和圖形,較為詳細地給出了流量系數和壓力系數隨不同氣動參數和幾何參數而變化的規律。Manager arsene wenger said he regretted his young arsenal side had not beaten juventus by an even bigger margin after tuesday ' s stirring 2 - 0 champions league victory. manager arsene wenger said he regretted his young arsenal side had not beaten juventus by an even bigger margin after tuesday ' s stirring 2 - 0 champions league victory. goals by 18 - year - old spanish midfielder francesc fabregas and captain thierry henry secured a precious quarter - final, first leg triumph over the twice european champions at highbury
坐鎮海布里球場的阿森納隊,在當地時間28日進行的歐洲冠軍聯賽四分之一比賽第一回合的較量中,憑借小將法布雷加斯和隊長亨利上下半場的各一粒進球, 2 : 0力克意甲聯賽「領頭羊」尤文圖斯隊,在通往半決賽的道路上佔得先機。The dissertation is devoted to the study on the characteristics of underwater acoustic channels for mine. based on the comprehensive analysis on the characteristics of underwater acoustic channels, the research on the parameters of target sea area, the acoustic model, the characteristics of underwater acoustic transmission and the parameters of capability of long - range remote control receiving system is systematically conducted through theoretical analysis, computer simulation and testing of circuit
本文對遠程遙控水雷系統將要應用的水聲通道的傳播特性進行了分析,在對遠程水聲通道特性進行全面分析的基礎上,通過理論分析、計算機模擬、硬體電路的實驗等對目標海域通道的水文參數、聲場分析所用的聲場模型、聲傳播特性和遙控接收系統性能指標進行了系統、深入的研究。The multi - channel digital synchronized log ( mdsl ) is a hi - tech product developed by institute of image & graphics, sichuan university, which is used mainly for recording synchronously the radar data and the dialogue between pilots and the control tower for airdrome and airline companies
「多通道數字同步記錄儀」是四川大學圖象圖形研究所研製的用於各個機場和航空公司用於實時記錄多路地空對話和雷達數據高科技產品。A novel strip - coil - baffle structure used to enhance heat transfer and support the tube bundle for a tube - shell heat exchanger is proposed. the new structure can sleeve the tubes in bundle alternatively to create a vortex flow in a heat exchanger. the numerical simulation on the flow and heat transfer characteristics for this new structure heat exchanger is conducted. the computational domain consists of two strip - coil sleeved tubes and two bare tubes oppositely placed at each corner of a square. the velocity and temperature fields in such strip - coil - baffled channel are simulated using fluent software. the effects of the strip - coil - baffles on heat transfer enhancement and flow resistance in relation to the reynolds number are analyzed. the results show that this new structure bundle can enhance the heat transfer coefficient up to a range of 40 ? to 55 ? in comparison with a bare tube bundle ; meanwhile, higher flow resistance is also accompanied. it is believe that the strip - coil - baffled heat exchanger should have promising applications in many industry fields
介紹了一種用於強化管殼式換熱器殼側傳熱和支撐管束的螺旋折流片新型結構,該結構是對換熱器管子相間地套上螺旋折流片以產生旋渦流動.研究模型是在正方形布置的4個管子中的2個對角管子套上螺旋折流片后形成的通道,利用fluent軟體對該上述四管通道模型的流場和溫度分佈情況進行了數值模擬;分析了四管通道模型中螺旋折流片對強化傳熱和流動阻力隨雷諾數的變化關系的影響.算例結果顯示該新型結構可比相同尺寸的光管通道中的情形傳熱系數提高約40 ? 55 ? ,同時也將伴隨較高的流動阻力.可以相信螺旋折流片式換熱器將會在許多工業領域有良好的應用前景Abstract : a novel strip - coil - baffle structure used to enhance heat transfer and support the tube bundle for a tube - shell heat exchanger is proposed. the new structure can sleeve the tubes in bundle alternatively to create a vortex flow in a heat exchanger. the numerical simulation on the flow and heat transfer characteristics for this new structure heat exchanger is conducted. the computational domain consists of two strip - coil sleeved tubes and two bare tubes oppositely placed at each corner of a square. the velocity and temperature fields in such strip - coil - baffled channel are simulated using fluent software. the effects of the strip - coil - baffles on heat transfer enhancement and flow resistance in relation to the reynolds number are analyzed. the results show that this new structure bundle can enhance the heat transfer coefficient up to a range of 40 ? to 55 ? in comparison with a bare tube bundle ; meanwhile, higher flow resistance is also accompanied. it is believe that the strip - coil - baffled heat exchanger should have promising applications in many industry fields
文摘:介紹了一種用於強化管殼式換熱器殼側傳熱和支撐管束的螺旋折流片新型結構,該結構是對換熱器管子相間地套上螺旋折流片以產生旋渦流動.研究模型是在正方形布置的4個管子中的2個對角管子套上螺旋折流片后形成的通道,利用fluent軟體對該上述四管通道模型的流場和溫度分佈情況進行了數值模擬;分析了四管通道模型中螺旋折流片對強化傳熱和流動阻力隨雷諾數的變化關系的影響.算例結果顯示該新型結構可比相同尺寸的光管通道中的情形傳熱系數提高約40 ? 55 ? ,同時也將伴隨較高的流動阻力.可以相信螺旋折流片式換熱器將會在許多工業領域有良好的應用前景The local controller in the airport tower checks the runways and the skies above the runways with binoculars and surface radar ( local and ground controllers are the only controllers licensed to use visual information in performing their duties )
在機場地面指揮控制中心中的本地管制人員通過雙筒望遠鏡和地表雷達監視跑道及其上空的情況。Firstly, the study of real two - channel data recorded by the airborne battlefield radar is made based on the methods of gmti, which including the study of methods of two - channel equilibrium, that of the precious estimate of beam scanning angle, that of the doppler center, that of the compensation for pattern error and that of gmti and that of location of the moving target using the phase - comparison mono - pulse method
首先,結合動目標檢測方法,對機載遠程戰場偵察雷達實驗系統錄取的雙通道數據的處理進行了研究。內容包括兩通道均衡方法研究,波束掃描角精確估計方法研究,多普勒中心估計方法研究,方向圖誤差補償方法研究,動目標的檢測和干涉定位方法研究。分享友人