電熱推進 的英文怎麼說
中文拼音 [diànrètuījìn]
電熱推進
英文
electrothermal propulsion-
And then, metal structure with aspect ratio 30 was obtained in our laboratory. eventually, a few micro parts with high aspect ratio were fabricated by liga process under the optimum condition. there were key parts of micro thruster, netlike nickel antielectron modulator, micro copper radiator, stainless steel micro components and many filter mediums with different shapes and dimensions
最後，我們利用liga技術加工的獨特優點，以發展其高深寬比技術的實際應用，先後製作了狹縫陣列鎳結構微推進器關鍵部件、薄壁網狀多孔鎳結構正電子慢化體、微型銅結構換熱氣和多種材料不同、尺寸各異的過濾介質，還結合利用liga技術和微細電火花技術的加工優點，製作出了不銹鋼微結構Sluice gate of double disk is controlled by electric - hydraulic handspike ; plc will compare sand temperature on outlet according to pre - designed value and inner sand temperature of double disk ; and then it adjusts close time of sluice gate, controls residence time of hot sand in double disk ; therefore, it can control sand temperature of outlet and make it reach required value.
雙盤的卸砂門由電液推桿控制， plc根據預設的出口砂溫與實測的雙盤內砂溫進行對比，而調整卸砂門的關閉時間，控制熱砂在雙盤內的停留時間，進而控制雙盤出口砂溫使其達到要求。After the preliminary trials and practice, the authors have proposed some new ideas and teaching strategies in implementing bilingual teaching in thermotics and electromagnetics in order to further promote bilingual education in colleges whose focus is directed at teaching
通過對普通物理（熱學、電磁學）雙語教學的探索和實踐，本文旨在提出在教學型院校進一步推進雙語教學的思路和對策。The reason of these improvements are discussed as a base of lower down the power level without the debasement of performance and the alter of propellant by hydrogen or hydrazine
為今後進一步在確保性能的前提下降低發動機功率以及以氫氣、氮氣混合或者肼作為推進劑的電弧加熱發動機的探索和研製奠定了基礎。Because of the difference of production technology and operation condition, the jacket heating type divides electric bar heating, steam heating, conduction oil cyclic heating, and the shaft seal equipment divides stuffing seal and mechanical seal, and mixing type divides anchor type, paddle type, worm wheel type, pusher type and frame type
由於用戶因生產工藝操作條件不盡相同，夾套加熱型式分為電熱棒加熱蒸汽加熱導熱油循環加熱，軸封裝置分為填料密封和機械密封，攪拌型式有錨式漿式蝸輪式推進式和框式。In the recent years, the monopolization of telecom operation has been broken off since the chinese government has speeded up the reform of the telecom system, relaxed the central control on the domestic telecom market as well as china entered wto. at present, there are seven main telecom competitors to run the telecom business rather than the previous single chinese telecom market. furthermore, it becomes drastic that competitors fight against one another by running various business instead of single one
近年來，隨著國家對電信體制改革的大力推進、國內電信市場管制的放鬆和加入wto ，壟斷經營已基本被打破，七大電信運營商的競爭格局已取代了「中國電信」獨步天下的歷史，在沿海發達城市，以業務替代為主要手段的話務量爭奪戰已漸趨「白熱化」 。Much works has been distributed to the development of a vacuum system to simulate the outer space and a measurement system to test the arcjet performance. ignition experiments in various operational modes have been done with argon as propellant. macroscopical working parameters including thrust, mass flow rate, voltage, current, inlet pressure and vacuity are obtained by the test measurement system and actual performance parameters including specific impulse, thrust efficiency, ratio of thrust and power and ratio of power and mass flow are calculated
以氬氣作為推進劑，在不同工況下進行點火實驗，測量獲得了其工作推力、電弧電壓和電流、推進劑流率和弧室壓力等宏觀參數，得到了不同實驗條件下其工作的實際比沖、推力效率、推力/功率比以及比功率等性能參數，分析了推進劑質量流率、電弧功率、電弧加熱發動機電弧室結構尺寸等因素對其性能的影響，為數值模擬研究和實際的低功率電弧加熱發動機優化設計及研製提供了實驗基礎。Our research found that, the main reason which led to the oscillation of jet and arc voltage was the oscillation of propellant flowrate. the oscillation of flowrate was caused by the oscillation of water evaporation in pipes
本文的研究發現導致水電弧加熱發動機羽流和電壓脈動的主要原因為推進劑流量供給的脈動，而供給流量的脈動是由於水在管內汽化的脈動引起的。I would also like to express heartfelt thanks to the delegates from foreign embassies to china for attending this seminar
我謹代表中國機電產品進出口商會表示熱烈的祝賀，並向出席推介會的各國駐華使節表示衷心的感謝。There are two main categories of torpedo drive systems : electrical and thermal
魚雷動力推進系統分為電動力和熱動力兩大類別。The relative intensity method is adjusted to deal with this case. the measurement of the temperature distribution based on this improved method is successful, and the measurement results are compared with the results of the thermocouple method
並將sq - 2推進劑的結果和熱電偶以及化學平衡計算的結果進行了比較，結果表明譜線法測量不但有很好的精度，而且能在一些熱電偶無法測量的情況下得到好的結果。This paper presents the effects of some features on the productivity of raw c60 materials, such as distance and approaching speed of electrodes, helium partial pressure and arc current etc. then we separate and purify the raw materials and obtain pure solid c60 of 99. 9 % and compare the purification efficiency and effect of different fluxion phase and fixed phase and discuss the effects of the experimental conditions, such as the depositing speed, the type of the substrate, the surface structure of the substrate and the temperature of the substrate. finally, we use xps, afm, ultraviolet, infrared and raman to analyze the component, structure and feature of the films qualitatively and quantitatively
本文首先研究了氦氣分壓、弧電流大小、電極間距以及電極推進速度等實驗條件對制備c _ （ 60 ）粗品產率的影響；接著選用柱色譜法分離提純得到了純度大於99 . 9的c _ （ 60 ）固體，比較了不同流動相和固定相的提純效率和效果；然後採用自己改進后的真空鍍膜機，利用電阻式加熱蒸鍍方法，得到了純c _ （ 60 ）薄膜和不同摻雜比的銀摻雜薄膜；探討了沉積速率、襯底種類、襯底表面結構以及襯底溫度等實驗條件對薄膜結構的影響；最後通過xps ， afm ，紫外，紅外，拉曼對薄膜的成分、結構和特性作了定性和半定量分析。Microwave plasma thruster ( mpt ) is a new studying type electro - thermal propulsive device. it has prospective application in spacecraft
微波等離子推力器（ microwaveplasmathruster ? mpt ）是一種新型的在研電熱推進裝置。The two - dimensional axisymmetric subsonic - transonic - supersonic flow in an experimental arcjet thruster is simulated numerically using flux vector splitting method. the profiles of density, velocity, temperature, pressure and mach number can be obtained by the computation. the computation grid and some computed results are given here. the test equipment such as power supply system, ignition system, propellant supply system, arcjet thruster, thrust measuring device and vacuum system are introduced briefly. some working phenomena of the arcjet are observed and discussed. three different kinds of instability appeared in the process of the experiments. except some important parameters are measured, it is found that the operating stability of argon is better than that of nitrogen
對一實驗電弧加熱式發動機二維軸對稱亞跨超音速流動進行了數值模擬，所採用的方法是矢通量分裂演算法.通過計算可以得出密度、速度、溫度、壓力和馬赫數的分佈.給出了計算所使用的網格和一些計算結果.簡要介紹了實驗所使用的設備，如電源系統、點火系統、推進劑供給系統、電弧加熱式發動機、推力測量裝置和真空系統.對所觀察到的一些工作現象進行了討論.有三種不同的不穩定性出現于實驗過程.除了所測量的一些重要參數，通過實驗發現氬比氮工作更穩定In order to investigate the effect of 2, 4 - dihydroxylbenzoate ( - bi ) on the combustion of double - base propellant, the combustion law of the propellants containing - bi was studied by means of the single frame amplification photography fl miniature thermocouple, the scanning electron microscopy ( sem ) and the link isis energy spectrum
摘要為了探索2 ， 4 -二羥基苯甲酸鉍對雙基推進劑燃燒的催化作用，採用單幅放大彩色攝影法、型微熱電偶技術、掃描電鏡和電子能譜研究了含2 ， 4 -二羥基苯甲酸鉍雙基推進劑的燃燒規律。Arcjet is one of the highlight of electric propulsion investigation and application because of its high thrust density, high ratio of thrust and power, preferable specific impulse, better system successiveness and reliability
作為電推進的一種方式，電弧加熱發動機以較高的推力/功率比、推力密度、中高的比沖、良好的系統繼承性和可靠性等特點，成為當前國際研究和應用的熱點。Arcjet which used water as propellant has special advantage in deep space exploration and manned spacecraft
以水作為推進劑的電弧加熱發動機，在深空探測和載人航天中具有獨特的優勢。Low power arcjet, which works between the power level of 100w and 1000w, is an ideal micro propulsion device of attitude control and nssk for small satellites and micro satellites
低功率的電弧加熱發動機，即運行功率在100w ~ 1000w的電弧加熱發動機，是完成小衛星、微型衛星軌道保持和姿態控制任務的理想推進系統。Arcjet, one type of electric propulsion, is high at specific impulse and ratio of thrust, and good in capability of propellant. thus it is being researched and applied in several countries
電弧加熱發動機就是電推進的一種，它具有較高的比沖和推力/功率比以及良好的推進劑普適性，已成為國際研究和應用的重點。The test equipment such as power supply system, ignition system, propellant supply system, arcjet thruster, thrust measuring device and vacuum system are introduced briefly
簡要介紹了實驗所使用的設備，如電源系統、點火系統、推進劑供給系統、電弧加熱式發動機、推力測量裝置和真空系統。分享友人