氣體推進 的英文怎麼說
中文拼音 [qìtǐtuījìn]
氣體推進
英文
gas propulsive-
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The rule of fluctuation of energy and pressure about canonical assemblages relativity quantum perfect gas under high temperature is given through strict theoretical inference and comparison with the theory on non - relativity
通過嚴格的理論推導，給出了正則系綜高溫條件下相對論量子理想氣體的能量和壓強的漲落規律，並與非相對論漲落進行了比較In this thesis, based on pershing ii surface to surface missile, a new kind of ballistic missile was designed with an additional rocket engine, which can be ignited twice. firstly, aerodynamic computational models of missile body and warhead which reentry with supersonic are built according to the task requirements ; secondly, the propulsion system model of missile is built whose first two stages are solid rocket engines and the third stage is liquid - solid combined rocket engine. the nozzle and the shape of the engine are designed to meet the needs of the populsion project ; thirdly, the trajectory model of the mass point is built and a wavy trajectory is designed & optimized ; finally, the ability of a missile ' s breaking through defence is analyzed
以美國潘興導彈為原型，增加可兩次點火的末級發動機，改裝成具有跳躍能力的地地彈道導彈；首先，根據任務需求，建立了導彈的氣動模型，並建立了彈頭再入時高超聲速氣動模型；其次，建立了導彈推進系統模型，前兩級採用了固體火箭發動機，第三級採用了固?液組合火箭發動機，並在總體方案要求下，對發動機噴管和外形進行了設計；第三部分，建立了導彈質點彈道模型，設計了一條跳躍式彈道，並對跳躍式彈道進行了優化設計；最後，對導彈進行了突防能力分析，從分析的結果可以看出，跳躍式彈道的突防能力比常規的拋物線彈道要強。Gaseous, liquid, or slurry propellants may be used in various combinations.
氣態，液體或膠狀推進劑可能用於各種不同組合中。An air straightener should be placed down stream from propeller to counteract circular air motion in the tube.
一種氣體直線流動器應該使氣流從推進器的反作用中使氣體的活動在管內循環。The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro
激光陀螺的核心部件為he - ne環形激光器，而掌握光與介質的相互作用理論是研究激光器的關鍵，採用拉姆半經典理論為主，在密度矩陣理論的基礎上，推導環形諧振腔中描述he - ne氣體增益介質原子運動的光學布洛赫方程，運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組，在此基礎上，運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ，對激光陀螺中的介質增益色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究，並且運用全量子理論，對激光工作原理進行分析，得出二能級系統單模輻射場的光子數密度分佈，得出激光場的光子統計分佈，模擬激光場的動態建立過程。The numerical simulation of axisymmetric two - dimensional shock tube is studied, which has a conical convergent section, and its driving gas is the hot product of hydrogen oxygen detonation. finite volume tvd scheme is adopted and the mesh is local orthogonal. the primitive equations are euler s equations of multi - component flow. the new method of eliminating numerical oscillation at the interface of two materials is extended to two dimensions. the mechanical character of this shock tube is analyzed
對由前向爆轟產生驅動氣體並具有局部錐形收縮截面的軸對稱激波管利用兩相常比熱完全氣體的歐拉方程組和有限體積tvd格式在局部正交的網格上進行了二維數值模擬。將消除兩種介質界面處數值振蕩的新方法成功地推廣到二維情況。分析了該激波管的力學特性。The transportable powder series extinguishers are effective extinguishing appliances, in which extingshing agent sodium bicarbonate or ammonium phosphate powder together with the driving gas - nitrogen are filled in a full - sealed container. during application, nitrogen drives to jetting powder for extinguishing, which is advanced in technology, simple in structure, convenient in operation, maintenance and storage, safe and reliable
推車式乾粉系列滅火器是一種新型高效的滅火器材，它使用磷酸銨鹽或碳酸氫鈉乾粉滅火劑和驅動氣體氮氣一起灌裝在全封閉的容器內，滅火時由氮氣驅動乾粉滅火劑噴射滅火，具有技術先進，結構簡單、操作方便、易於維修、便於保管，安全可靠等優點。According to gaseous " molecular kinetic, the mass diffusion rate is within finite value. so theoretical conclusion of mass flux ' s producing and the essential relation of flux vs. force could be drawn. with the assumption that local density states in near equilibrium and the distribution is gradual changed, the classical first pick ' s law was modified considering mass relaxation time
根據氣體分子運動論對質量傳播速度為有限值情況下的質量流的產生及流與力之間的本構關系作了理論推導，在假定局域濃度處于近平衡態，其分佈為漸進的情況下得到了考慮質量鬆弛作用的經典fick第一定律的修正式。Different equations to corresponding components are presented by analysing and transformating the general equations of fluid routes, then static characteristics mathematical model of liquid propellant space propulsion system is presented. based on the data of static characteristics calculation, mass model of thruster, propellant, propellant tank, gas, gas bottle, pipe and valve is presented using both the method of statistical regression and the method of stress analysis, then corresponding mass model is presented. based on the characteristics of liquid propellant space propulsion systems, analyse the five phases ( concept and definition, design and improvement, manufactureing and arrangement, operation and ma intenance, disposal ) in which life cycle cost of liquid propellant space propulsion systems is cost separately, then discompsed structure of life cycle cost and model of life cycle cost are presented
將組件分成氣路組件和液路組件，再對氣路組件和液路組件進行相應的分類，然後通過對通用流路方程進行分析和變換對不同類型的組件分別建立不同的方程，從而建立了一個適用於液體推進劑空間推進系統的靜態數學模型；根據靜態計算所得到的數據，應用統計回歸法和應力分析法分別建立推力室、推進劑、推進劑貯箱、氣體、氣瓶以及導管和活門等的質量模型，從而建立相應的質量模型；結合液體推進劑空間推進系統特點，對液體推進劑空間推進系統全壽命周期費用發生的五個階段（概念和定義、設計和改進、製造和安裝、運行和維修、處理）分別進行分析，建立了液體推進劑空間推進系統全壽命周期費用分解結構和全壽命周期費用模型。During their brief lifetimes, the dry ice shards collide and spin a multi - armed vortex of white mist. they propel themselves around the tank leaving trailing wisps of water vapour similar in appearance to the tail of a comet
有些乾冰塊噴出的氣體所產生的反作用力，足以推著乾冰前進，使後面形成一條條水氣的流跡，好像彗星的尾巴。With the support of intermediate services, the specialized platform of service has been built ; relying on " seed fund ", the platform of fund for adventure some investment has been established ; depending on the special fund of the torch center national ministry of science and technology for state high - tech career service center of ningxia, the honeycomblike informational network of the incubator of technological and small middle sized enterprises, the informational application network of the tracking of the incubating enterprise ' s growth, specialized public developing network ( molecular biology lab, key labs of natural gas transformation ) have been shaped to improve the system of incubation
依託高校、科研院所的智力資源，建立「智力信息平臺」 ；依託中介服務機構，搭建專業服務平臺；依託「種子資金」為風險投資，搭建資金平臺；藉助國家科技部火炬中心對寧夏國家高新技術創業服務中心專項資金，建立科技型中小企業孵化器蜂窩信息化網路、在孵企業成長跟蹤信息化應用網路、專業型公共開發網路（分子生物學專業實驗室、天然氣轉化重點實驗室） ，完善孵育體系，重點推進幾類孵化器建設。A variety of mechanical surfaces have been employed for deflecting the exhaust jets of solid-propellant rockets.
人們已經用過各種類型的機械控制面來偏轉固體推進劑火箭的排氣流。When nals was used as the collector in the process, the optimal conditions were the ph of feed solution 5. 0 - 6. 0, air flow rate 100ml / min, the liquid column depths 20cm, the surfactant concentration determined by its cmc and feed concentration. under this condition, the 3 can be above 20. also, the optimal ph ( 5. 0 ) was calculated theoretically for the recovery of the cu ( ii )
對以十二烷基硫酸鈉為捕集劑的泡沫吸附分離過程的工藝參數進行了研究，並得出本分離系統所確定的最佳工藝參數為： ph5 . 0 6 . 0 ，氣體流量100ml min ，液位高度20cm ，最佳表面活性劑濃度由其臨界膠束濃度和原料液濃度確定，此時（濃縮比）可達20以上；同時還從理論上推算出泡沫吸附分離銅的最佳ph值范圍為5 . 0左右。From this task, these can be gotten : 1. the principle for stepless capacity control system ( sccs ) has been deduced, and it can be used as the feasibility evidence. 2
對活塞式壓縮機氣量無級調節系統工作原理作了詳盡推導，對此課題的可行性進行了理論論證，得出了有關最大氣體頂推力等計算公式。Sophisticated technology is employed to minimise the environmental impact of the refuse, with an on - site bio - gas plant incorporating a leachate management system to prevent unacceptable leachate migration off - site into the surrounding environment
堆填區採用先進的處理廢物技術，利用有機廢物釋出的可燃性氣體推動污水設備，減低不合格污水對附近環境的影響。They propel themselves around the tank leaving trailing wisps of water vapour similar in appearance to the tail of a comet
有些乾冰塊噴出的氣體所產生的反作用力，足以推著乾冰前進，使後面形成一條條水氣的流跡，好像彗星的尾巴。Pressure-fed engines are particularly susceptible to dissolved gas in the propellants.
擠壓式發動機對推進劑中溶解的氣體特別敏感。Compared with dc - mhd propulsion, ac mode has no electrode and does n ' t apply electric field to fluid directly. thus it avoids the detriment and noise caused by the air bubble generated by electrolysis, and makes the ship more quietly. these characters will help to develop a more efficient ship thruster
與直流磁流體推進相比，交流磁流體推進方式的最大特點就是沒有電極，因此沒有電極壽命問題，消除了電極表面壓降對推進器效率的影響，也沒有電機表面電化學過程產生的不良效應，如氣泡、電解質對海水的污染等。When liquid propellants are used the fuel and oxidize are fed under pressure to one or more combustion chambers and expanded to atmosphere through convergent-divergent nozzles.
當使用液體推進劑時，在壓力作用下，燃料和氧化劑輸送到一個或幾個燃燒室中，並通過收斂-打散噴管，排到大氣中。分享友人