方形進氣道 的英文怎麼說
中文拼音 [fāngxíngjìnqìdào]
方形進氣道
英文
square air intake- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
- 進 : 進構詞成分。
- 氣 : Ⅰ名詞1 (氣體) gas 2 (空氣) air 3 (氣息) breath 4 (自然界冷熱陰晴等現象) weather 5 (氣味...
- 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) ...
- 方形 : square; tetragonum
- 氣道 : air flue; air passage
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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。On a level with the floor on every stairhead there was a low window which resembled a deep, square venthole, while in lanterns fastened to the walls flaring gas jets crudely illuminatcd the surrounding squalor and gave out a glowing heat which, as it mounted up the narrow stairwell, grew ever more intense
每道樓梯的平臺邊,貼近地面都有一扇低矮的窗戶,方方正正地凹進去,像是氣窗。一些懸掛在墻壁上的燈籠,發出煤氣光焰,強烈地照射著這種種貧寒景物,還散發出一股熱氣,向上升騰,並聚積在各層狹窄的螺旋形樓梯下。After 6 months ' theoretical study, i have furthered my clinical skills with another 6 months ' practice and training in peking union medical college hospital and two years in orthopedics hospital, especially in airway management, pediatric anesthesia and orthopaedics anesthesia
在進行半年的理論課學習(均分排名第一)后,通過在協和醫院半年和整形外科醫院兩年的實踐與培養,我的臨床技能得到了進一步的提高,尤其在氣道管理技術,小兒麻醉,整形外科麻醉幾方面。Finally, the inlet port and combustion chamber designed and machined is tested on 4100qb. the paper mostly investigates the change of performance targets of the engine that three different grooved chambers including two different re - entrant model and one w model match with various intake port and nozzles, in order to realize the influence of chamber geometry on combustion process. the results analyzed have indicated that re - entrant grooved chambers can enhance the turbulent intension in the chamber, improve the combustion proces of diesel engine on the altiplano, being groove, re - entrant and convex, and have the farther developing potential
著重研究兩種縮口、一種直口矩形環槽燃燒室與不同進氣道、噴油嘴的組合方案發動機的動力性、經濟性及排放指標的變化,確定燃燒室的幾何形狀對燃燒過程的影響。分析結果表明,由於有矩形環槽、燃燒室縮口以及燃燒室底部凸臺,縮口矩形環槽燃燒室中的紊流得以加強,改善了高原柴油機的燃燒過程,這種燃燒室有進一步發展的潛力。The pattern of shoujinliao ' s climatic design : first, it talks about shoujinliao ' s ventilation, analyses every stale belong to each compose of space appeared in shoujinliao. sum up that ventilation system is made up by draught and wind route, by showing data and photograph, then, it talks about shoujinliao ' s methods of sunshade and heat insulation, that is, sunshade of concentrated, sunshade of small yard, sunshade of eaves, sunshade of balcony. heat insulation of outward wall, clay tiled roof and composition neatly
著重分析手巾寮結合氣候的模式,首先談及手巾寮建築通風經驗,深入分析各種空間高低組合情況下手巾寮的通風情況,藉助調研資料和實景照片對通風系統中通風口和風道的合理安排進行介紹;其次是手巾寮其他氣候經驗,如遮陽方式主要體現在連房密集遮陽、小天井遮陽、檐下灰空間遮陽、陽臺遮陽等,又如隔熱途徑有墻體隔熱、灰泥苫背瓦屋面隔熱及規整形隔熱,再如綠化水體的降溫措施,上升到環境高度看待建築,探討手巾寮組織天井綠化、利用街巷綠化、配合周邊水域的建造經驗。This research is to eject some compressed air into the dredging pipe to get tri - phase flow in the pipeline, and research the change about the pipe resistance, at the same time, obtain the more effect adding gas method and realize reduction friction and prolong the dredging distance
本文研究的目的是在一定的漿體流速和漿體濃度下向輸送管道中加入一定量的氣體,在管道中形成三相流,進而探討加氣后管道流動的變化規律,同時確定出比較有效的加氣方案,從而實現減少阻力延長排距的目的。Secondly, based on the improved algorithmic of computing the multi - fractals spectrum of seismic records, aiming at the given seismic data, we extract some character parameters of multi - fractals. following that, we select the useful parameters. finally, we fulfill the successful forecast of single geodesic and the whole area of upside layer of aotaoxi in some oil field based on oil attributes of the wells we have known, using the method of grey pattern identification, and get good comments from some experts of the same vocation
論文首先介紹了一般分形和多重分形的基本理論和演算法:其次,用作者提出的一種求地震記錄多重分形譜的改進演算法,對給定的地震道數據進行多重分形特徵參數的提取;接著優選出油氣識別用的多重分形特徵參數;最後,根據已知井位的油氣屬性,用灰色模式識別方法實現了某油fr奧陶繫上部儲層單測線及區域油氣產出前景的成功預測,得到了同行專家的好評。By a lot of trial and error, a new - type lightweight fireproofing board is developed. the test results indicate this production has obvious characteristics such as high temperature resistant, moistproofing, low distortion, and fireproofing limitation of 3h. its safety and toxicity has been examined according to relative national criterion and standard and the results show that no deleterious and poisonous gas is produced after combustion
經過反復多次試驗、篩選,研製出的隧道防火板質輕,具有一定的柔韌性,便於施工;耐溫、耐潮濕;變形小;耐火極限達3h ;安全毒性方面,參照室內空氣質量檢測標準等規范進行了測試,測試結果為:產品不釋放有害氣體,屬環保型材料;按照國家相關的材料規范檢測其毒性,檢測結果表明,產品在燃燒后不產生有毒有害氣體。Numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
運用cfd進行數字模擬,以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要,熱煙氣流特性受火源位置的影響很大,並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好,也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明,在縱向通風隧道內,熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現,火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區Abstract : numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
文摘:運用cfd進行數字模擬,以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要,熱煙氣流特性受火源位置的影響很大,並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好,也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明,在縱向通風隧道內,熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現,火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區With fully investingation and research, this paper analyzed some prlblems based on the background of pipeline bureau of chinese petroleum gas and pipeline branch company of chinese petroleum gas stcok company. the main content include : expounded the stock company based on key business and remainnder enterprise with the real example ; sumed up the question betweenn listed company and the remainder enterprise ; aanalysed historical reason and realistic reason why the question exists with the method at last. the theory method and model frame adopted in this paper are not only suitable for the petrochina, but also have guide reference for the following reforms of large - scale, super - huge state - owned enterprises such as coal. water conservancy, electric powers, railways, civil aviations, etc
本文以中國石油天然氣管道局和中國石油天然氣股份公司管道分公司為背景,用實證分析的方法,在充分調研的基礎上闡明了基於核心業務的上市公司和存續企業的形成;歸納總結了上市公司和存續企業之間存在的問題;以系統分析方法為指導思想,運用邏輯推理的方法分析了問題存在的歷史原因和現實原因;面對具有中國特色的企業,既要保證改革的成功,提高企業的競爭能力,又要保證社會的穩定,在充分考慮國家、社會、投資主體、職工個人等多方利益的基礎上,提出用戰略聯盟的思想來指導二者之間的關聯交易;指出上市公司、存續企業和集團公司三方應從不同角度做出思想意識的轉變;最後用idefo方法對聯盟的運行進行結構功能設計。The disposal of the valves and intake manifold structure not only affect fresh air charge but airflow in the cylinder, which immediately affect combustion efficiency and the performance of dynamic, economic and emission. the structure of the air distributing institution has influence on charging efficiency and the noise of engine. the combustion chamber affects compression scale which has great influence on dynamical performance ; f / v which affects the exhaust of hc ; squash area and clearance which have great influence on the intensity of squash
氣缸蓋的氣門排列方式與氣道結構形式影響進氣充量和氣流在氣缸內的運動,從而影響了燃燒效率,對整機的動力性、經濟性以及排放都有直接的影響;配氣機構的形式影響充氣系數和整機噪聲等;缸蓋燃燒室決定了影響整機動力性能的壓縮比,影響hc排放的f / v和對擠流起決定性作用的擠氣面積以及擠氣間隙,所以燃燒室對整機動力性、經濟性、排放等都有重要的影響;氣缸蓋是整機熱負荷與熱應力最大的部件之一,熱負荷過高將不利於發動機壽命以及可靠性的提高。With the favor of these techniques, the static pressure distribution along the length and the velocity profile at the mini - channel exit were obtained. with the data of more than 500 flow states based on 13 kinds of mini straight rectangular channels that their heights were 0. 5mm and 1. 0mm, the effects of characteristic scale, surface roughness and the aspect ratio of rectangular on the characteristics of flow resistance of mini straight channels were studied
採用在沿程測量氣流靜壓分佈、在出口測量速度分佈的方法,對高度0 . 5mm和1 . 0mm的13個微小直矩形通道的500多個狀態流場進行了測量,研究了特徵尺度、表面粗糙度、橫截面寬高比等因素對微小等直通道流動阻力特性的影響。Constructure forms and work principles of hydraulic vavle lifter ( hvl ) in four kinds of classic internal conbustion engine is introduced ; designment and application of oil - intake line, oil - reservoir volumn, and limit position of plunger running in hvl and requirement of hvl on lubrication system and valve train mechanism of internal combustion engine are analyzed ; in the meanwhile, corresponding solutions are put forword
摘要介紹了4種典型內燃機液力挺柱的結構形式及工作原理,對液力挺柱在設計和應用中進油道、儲油室容積、柱塞工作極限位置及液力挺柱對內燃機潤滑系和配氣機構的要求等幾個問題進行了分析,並提出了相應的解決方法。Education on socialist concept of honors and disgrace is not only the need of forming good school atmosphere and then influencing public atmosphere, but also the need of solving the problems exiting in university students in morals aspects and then realizing the function of education in colleges
摘要社會主義榮辱觀教育,不僅是形成良好校風進而影響社會風氣的需要,更是解決大學生思想道德方面存在問題進而實現高校育人功能的需要。Then mechanical experiments were carried out to measure the longitudinal tensile strength and radial supportive strength. based on the testing results, the different deformation functions of the tubular fabric were obtained and we conclude that the strength indexes vary directly as the material diameter and the arrangement of the pp and pgla has a prominent influence to the radial supportive strength of the woven artificial trachea. in addition, the degradation property of the tracheal prosthesis was investigated and this provides another important foundation for the fabrication technology of the artificial trachea
在試驗測試部分,本課題對試樣的拉伸性能和徑向強度進行了測定,根據試驗的結果深入研究了每種管道織物在測試過程中的不同變形作用,也得到了不同的編織工藝參數對人工氣管力學性能的不同影響:原料的細度的變粗可增大人工氣管各力學強度指標;機織組織管道織物中兩種原料的排列方式對人工氣管的拉伸性能並無明顯影響而對其徑向強度影響顯著,其中以「 1隔1 」和「 3隔3 」的排列方式較佳。A useful technique has been provided and developed for the researching and analyzing the factors and variation of flow field in the intake duct of diesel engine. to find out a new method to measure flow measurement, different intake duct on different conditions are experimented and researched by real - time holographic interferometry. real - time holography interferometry has many characteristics, such as high precision, non - destructive, high contrast of interference fringes and full field test
該方法具有精度高、非接觸、條紋對比度好、對被測物體形狀和表面無特殊要求的特點,實驗了對三維非定常流動過程的可視化實時採集,為了解和分析不同流量、不同結構參數下進氣道內氣流運動狀態和流動特性的變化關系及其影響因素提供了一種有效的測試手段。First, the direction of fringe variation in the interference images is different with different intake duct, but in the same intake duct, the direction is the same. second, different intake duct has different rules to flow variation. third, the infinite width of interference fringe is visual, high precision, and easy to qualitative analysis, but the finite width of interference fringe is easy to judge the direction of fringe variation and to further detailed analysis
實驗結果表明,氣道不同,條紋的變化方向不同,但同一氣道在不同的流量下,條紋的變化方向是一致的;不同形狀的氣道對流量的敏感程度不同,對氣體旋流的擴散作用影響也有很大的差異;用無限寬條紋法得到的圖像直觀,靈敏度大,易於做定性的分析對比,而有限寬條紋法可以進行流體在運動方向的判別,更有利於詳細的分析研究。分享友人