推力面積 的英文怎麼說

中文拼音 [tuīmiàn]
推力面積 英文
area of thrust surface
  • : 動詞1 (向外用力使物體移動) push; shove 2 (磨或碾) turn a mill or grindstone; grind 3 (剪或削...
  • : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
  • : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
  • : Ⅰ動詞(積累) amass; store up; accumulate Ⅱ形容詞(長時間積累下來的) long standing; long pending...
  • 推力 : visatergo; soot; propulsive force; thrust; momentum thrust
  • 面積 : [數學] area
  1. In influencing the inside factors of peasant household ' s decision, have householder ' s schooling, population, workforce ' s quantity and land area, householder ' s schooling and land area exert a great influence on peasant household ' s decision ; the external factors of influencing peasant household ' s decision have natural environment conditions, agrotechnical to popularize cost and benefit, policy, market, community and neighbourhood relation, popularize service system

    在影響農戶決策的內部因素中,有戶主文化程度、人口和勞動數量及土地,戶主文化程度和土地對農戶決策的影響較大;影響農戶決策的外部因素有自然環境條件、農技廣成本與效益、政策、市場、社區及鄰里關系、廣服務體系。
  2. The complex nonlinear pursuit - evasion model of two spacecraft in near - earth coplanar orbit is simplified to linear model, the circular region the radius of which is equal to capture radius is defined as target set, capture is achieved when the evader come into the target set and the game is over ; the boundary of useable part ( bup ) is determined, and the analytical form solution of the linear equations is obtained by backward integration of the state variables from the bup, the linear barrier of the pursuit - evasion model and the optimum thrust of the both sides are thus obtained

    本文將近地共軌道內運動的兩飛行器非線性追逃模型簡化為線性模型,以捕獲半徑的圓域定為目標集,確定目標集邊界上的可用部分,並以此為各狀態變量的起點,對時間進行倒向分,求得線性方程組的解析解,從而確定了該追逃模型的線性界柵,以及界柵上對策雙方的最優,即求得了滿足最優策略時相對運動的軌跡和
  3. On this foundation the article inducts in detail the method which is based on the relative settlement of calculating unit area end support ( qb ) force at the same time considering the feature of pedestal pile ' s " arch effect " the article introduces conception of pile effective length and finally obtain t he formula of calculating man - made pipe with bulb - shaped axial carrying capacity. the article uses marc program to calculate and analyze foundation soil ' s stress and displacement and gets the change curve chart and the proportion that is shared by king - pipe side soil friction resistance and pipe end counterforce respectively. the article inducts the structure of pedestal in detail on the basis of generalizing pedestal application cases of many countries

    在此基礎上論文詳細歸納了以相對沉降為依據確定單位端承q _ b的計算方法,並考慮擴底樁的「拱效應」特點引入了有效樁長的概念,最後結合公路規范出了比較實用的人工挖孔擴底樁軸向承載計算公式。論文運用了marc程序對地基土的應和位移進行了有限元數值計算分析,得到了地基土的應和位移場的變化曲線和在加載過程中樁側土摩阻和樁端反各自所承擔的比例;本文還在總結各國挖孔擴底樁應用情況的基礎上就擴底樁的構造進行了詳細的歸納。
  4. Shandong tengzhou huacheng metal co., ltd. enjoyed free mport anf export right awaeded by the state evonomic and trade co mmissiom, with 20years histoy of specolozed in metalwork. our favtory lovated in beauty spot of honghe everglade near weoshan lake in the south - eest of shandong rovince. we regisstered fund is 22 800 000rmb, and thr acreagr id 30000 squares, anthe workshop is 12000 squares, with 358 workerd ( not include the 16 filiale ) but 21 of them are advanced engineers, advances technology, completely testing equipment, good quantity of produces, and advance technology about surface producing, under the spirit of together effort with our clients, our company would make a new view on the surface making in many fields, such as : airplane, vessel, armory, car, container and so on

    山東省滕州市華成金屬製品有限公司是一家具有中華人民共和國自營進出口資格的企業,已有20多年專業生產金屬磨料的歷史,公司位於中國魯西南地區的微山湖紅荷濕地風景區,公司注冊資本2280萬元人民幣,工廠30000平方米,車間12000平方米,員工358名(不包括下屬16個分廠)其中高級工程技術人員21名,技術量雄厚,質量檢測手段完善,產品質量穩定,具有先進的表處理技術.公司本著與客戶共同努的觀點,在材料和技術應用上不斷創新,不斷提高,把飛機,造船,兵工,車輛,集裝箱等行業的表處理,強化,向一個嶄新的局
  5. Based on the research works of predecessor, the theory on the displacement of soil strata in deep foundation excavation construction and its application are studied in detail. by analysing the supervision, statistics from, the practical excavation engineering, soil rheology is thought to be the main reason of the displacement heavy of the soft soil and the destruction of the enclosure structure, in deep foundation excavation construction on condition of the high theriomorphic of enclosure structure and good seepage resitting

    本文在已有研究成果的基礎上,對大軟土深基坑開挖時土層變位理論及應用進行了探討:依據現場監測數據,導出開挖時軟土變形的經驗公式,分析了軟土深基開挖在圍護結構剛度大、基坑防滲效果好的條件下,基坑土層變位、圍護結構受破壞發展的主要原因。
  6. The first part. task analyse of handling technology design. is explain the place, basic establishments entironment of yangshan port and the conditions basic tenet and technical parameter of design. the second part, project study out. is discuss the design contents the choice of the leading and the assistant engine, the form of the handling mechanisation system, project study out. the third part, size design, is count the berth pass capacity, the amount of handling engine, the area and capacity of yard, road and gate, the worker amount. the fourth part. technology and economy argumentation, commendable project confirm, is confirm the commendable project by technology and economy argumentation. in the end, considering the technology, economy and use. discourse commend the project of rubber - tyred gantry crane. at present. centre government is studying yangshan project, but in handling technology part of container terminal, the design is simply. so this discourse has important consult value. and has important value of economy and community too

    第一部分的裝卸工藝設計任務分析主要就洋山港區的地理位置、基礎設施、自然環境,設計前提條件,設計原則以及設計主要技術參數進行說明;第二部分的裝卸工藝方案擬定主要就工藝設計的主要內容,主要機械及輔助機械選擇,裝卸機械化系統組成以及工藝設計方案擬定進行論述;第三部分的裝卸工藝方案規模設計主要就泊位通過能,裝卸機械臺數,堆場及堆存能,道路及大門,司機及工人人數,工藝流程進行計算分析;第四部分的技術經濟論證及薦方案確定主要就技術、經濟指標進行對比論證,並在此基礎上確定薦方案。
  7. Jingyijia was established in 1998, who is professional in manufaturing plastic mould, die - casting products. the workshop is more than 2000 cm2. the moulds was started to be exported to south asia and europe in 2001 using cnc milling machine, electrospark, wire - electrode cutting, etc. technique is unending while no the best in moulds. only by untiring working, reserching and improving, can we design good moulds. we welcome every old and new friend both at home and abroad to visit us and building business relationship

    廈門精藝佳公司成立於98年,百分百開發生產塑膠產品,壓鑄產品,製造各類塑膠壓鑄模具.模具廠使用兩千多平方米,多臺大型cnc銑床及電火花,線切割能加工製造, 3 . 5米以下各類模具. 2001年開始模具出口東南亞及歐洲.技術永無止境,模具永遠沒有第一,只有不懈努,研發,改進才能設計好模具.我們真誠期望國內外朋友,同行蒞廈交流指導,為繁榮經濟動民族工業科學進步和偉大復興作應有貢獻
  8. F ) to retreat cultivation 1. 467 million ha for reforestation or recovering grass. g ) attheend, to adjust the proportion of cultivated land, forest, grassland from 7 : 6 : 1 to 1 : 1. 4 : 1. 2, this proportion is reasonable ratio for land use structure. for getting the above strategy targets, we must handle of the following relations : a ) the relation between development and environment protection ; b ) the relation between population and land resources ; c ) the relation between construction and farmland protection ; d ) the relation between quality and quantity of farmland ; e ) the relation between land using and economy development ; f ) the relation between land exploitation and landscape worth maintaining, etc. for getting the above strategy targets, we must also adopt some good measures : a ) to control the construction occupying farmland ; b ) to use land intensive ; c ) to improve low - yield farmland ; d ) to make regional land resources distribution effective ; e ) to make comprehensive profit ; f ) to make family planning continually ; g ) to promote urbanization, etc. by carrying out these measures, land resources in shanxi province can be used sustainable

    同時,論文對土地資源利用潛和未來趨勢進行了科學理,提出了山西土地資源永續利用的戰略目標:到2015年,全省耕地穩定在433 . 3萬公頃左右,基本農田保持在366 . 7萬公頃左右,保證糧食產量100億千克;各項建設用地控制在14 . 2萬公頃,其中佔用耕地在7 . 9萬公頃,土地開發、復墾、整理補充耕地10萬公頃,改造中低產田10萬公頃,治理水土流失1 . 13萬公頃,發展園林草地146 . 667萬公頃(含退耕還林還草99 . 2萬公頃、園地6 . 7萬公頃) ;經過長期努,使林草地總達到865 . 6萬公頃,耕地、林地、草地比例由現在7 6 1逐步調節到1 1 . 4 1 . 2較合理的比例。
  9. Based on the mass conservation law and momentum equations of incompressible fluid in manifolds, the three examples of style manifolds with different pipe diameter show the difference between the marching solution method and the standard solution method

    摘要在並聯管組水動學基本方程的基礎上,分別採用水動進演算法和水動標準演算法,對3種不同的分支管的型集箱進行計算,比較兩種演算法的計算結果差異。
  10. Cfd is also used to get the data of performance parameters of the nozzle at different nozzle pressure ratio, different nozzle area ratio and different geometric defected angle. the theory of function approximation is used to establish the transient model of thrust vectoring with the data calculated

    本文通過cfd計算獲得矢量噴管的性能參數,如流量系數、系數以及有效矢量角等與矢量噴管壓比、比以及幾何偏轉角之間的關系數據,並利用函數逼近理論建立了矢量噴管的動態數學模型。
  11. The combination of obtained research achievement and extension effect in the ecological construction of soil and water conservation, sufficient exertion of ecological restoration ability, vegetation rehabilitation and ecosystem improvement widely and rapidly are the most effective approach to resolve the great problems on the slow steps of the prevention and cure of soil and water loss in china radically, which conform to the times

    結合水土保持生態環境建設已取得的研究成果與廣效應,充分發揮生態的修復能,大迅速恢復植被和改善生態系統,正是順應時代要求,從根本上解決我國水土流失防治步伐緩慢這一重大問題的最為有效的途徑。
  12. Consequently, the precast components don ’ t need any interim falseworks to be supported in the mid - span as bottom forms when the laminated concrete lay is being placed. furthermore, to form two - way slabs, the transverse steels can be arranged through the rectangular cores in the ribs of the precast slabs as needed. it makes the construction of composite two - way slabs easier and more feasible, practical, and suitable to introduce and apply to the building construction on a large area

    由於預制構件具有剛度大和承載高的特點,施工時以預制構件作為樓板底模無需設置跨中臨時支撐;同時還能通過預制構件板肋預留的長方形孔布置橫向受鋼筋實現樓板的雙向配筋,使預應雙向疊合樓板的施工簡單易行,更適合於大廣應用,具有較大的工程應用價值。
  13. In order to set up the dynamic model of swimming micro robot, this dissertation builds up the statics model and analyses the micro motion amplifying performance of micro robot mechanism, builds up the vibration model of micro robot and analyses the vibrating performance without and with damp, researches the propelling force of driven wing and the resistance of micro robot in liquid based on the theory of flat board resisting stream, builds up the dynamic model of swimming micro robot for the first time in nation and analyses its swimming performance which is influenced by driving signal frequency, amplifying performance of main machanism, area of driven wing, character of fluid and so on. this dissertation manufactures the micro robot and sets up the experimental environment and tests the amplifying effect and the vibrating performance

    本文建立了主體機構靜學模型,研究了主體機構的結構參數對微位移放大性能的影響;建立了主體機構振動模型,研究了主體機構在無液體阻尼和有液體阻尼情況下的振動特性;根據流體學平板繞流理論,研究了驅動翼產生的和微機器人在流體中受到的阻;在此基礎上國內首次建立了泳動微機器人的動學模型,並對模型進行了深入的研究,詳細闡明了驅動信號頻率、主體機構放大性能、主體機構振動特性、驅動翼、液體性質等因素對微機器人泳動特性的影響。
  14. The conclusion that the optimal secondary nozzle exit area generating the maximum thrust agrees well with the numerical simulation, indicating that the exit area of secondary nozzle should be optimized according to structure and flow parameters during design

    表明在引射火箭設計時,應結合引射火箭的結構和流動參數對二次噴管出口進行優化設計,以達到最佳性能。
  15. This new method has the capability of calculating complicated 3d grain burning surface. dealing with evolving interface of complicated material and topology change ( splitting. breaking. merging ), based on level set method and burning surface process law. this technique can get accurate area of burning surface each moment and data of geometrical structure that provide access to examination of grain change in the srm working process. 2

    結合固體火箭發動機燃移規律,在等值函數法基礎上開發的裝藥燃演算法能夠成功計算任意復雜三維裝藥燃,並且具有處理復雜物質邊界及其拓撲結構發生變化(如分裂、破碎、合併)的能,能夠準確計算出發動機工作過程中各個時刻裝藥的燃燒,同時輸出裝藥幾何構形數據直觀地觀察裝藥的變化情況; 2
  16. Abstract : it was deduced that the shapes of magnetic particle indicationsof point - type defects on workpiece surface depended on the resistance of carrier medium, and their dimensions depended on the volume of the defect equivalent cuboid, the magnetising characters of workpieces and magnetic particles, the strength of magnetic field, the lengths and sections of magnetic particles and the resistance character of carrier medium

    文摘:斷出工件表點狀缺陷磁痕的形狀取決于磁粉載體的介質阻尼,磁痕大小取決于缺陷等效長方槽的體、工件和磁粉材料的磁化特性、磁場強度、磁粉長度和橫截以及載體介質的阻尼特性等。
  17. The experimental results indicates that the secondary mass flow increases with increasing of primary mass flow rate, but the bypass decrease because the primary mass flow rate increase more rapidly than secondary mass flow. the expansion configuration shows low thrust property due to low pressure in flow path. the secondary nozzle changes the pressure distribution in ejector combustor, and decreases bypass ratio, but obtain more completely mixing

    結果表明:二次流流量隨著一次流流量的增加而增加,由於二次流流量的增加速度低於一次流,引射系數減小;在純擴張式結構實驗中,引射燃燒室壓強很低,難以實驗增強;二次噴管改變了引射燃燒室的壓強分佈,降低了引射系數,改善了混合狀況能;對于本文的實驗結構,存在一個最優的二次噴管出口,使引射火箭最大,同數值模擬結果相吻合。
  18. Comparing with other countries, the effect of government promotion of the wheat market in china are still far backward, especially its low level of the producer supporting, establishment of market system, and international trade policies, which have seriously ristricted the enhancement of chinese wheat competitiveness. finally, the policy implications for china to improve wheat international competitiveness are put forward as the following : 1 ) to enhance the construction of centralized region of wheat, which will help to extend the application area of excellent breeds, so as to overcome the problem of quality instability. additionally, the construction of centralized region will improve the organized level of producers and increase industries values

    最後,在對上述問題進行國際比較研究的基礎上,我們提出提高中國小麥國際競爭的對策建議如下:加強集中連片的優勢小麥產區建設,有利於優良品種大廣種植和小麥統種統收,從而克服中國小麥質量不穩定的難題,優勢小麥帶建設也有利於提高生產者的組織化程度和產業鏈增值:加強政府對小麥生產經營的宏觀調控,在wto框架內加人小麥生產者支持水平、完善生產者支持結構、加快小麥市場體系建設等。
  19. Some members have suggested that the resumption of land sales could start with smaller lots, or upon application etc. i am grateful to members for their various suggestions on how to render our land sales programme more flexible and more in tune with market demand and reception

    有些議員提議在恢復賣地后,政府應先較小的用地,或按發展商的意欲,待其作出申請后才出售等等。我十分多謝各位議員就如何使我們的賣地計劃更具彈性,更能切合市需要和承接等等提出各種建議。
  20. Xuhui district is located in the southwest of downtown shanghai and covers an area of 54. 76 square km. 113 resident scientific research institutes, including 10 universities ( shanghai communication university, fudan university and east china science & technical institute etc. ), national academy of sciences and shanghai academy of sciences, act as the vital driving force and innovation source for the development of high - tech industries

    徐匯區位於上海市中心區西南部,54 . 76平方公里,區域內擁有上海交大、復旦大學(上醫大) 、華東理工大學等10所高等院校、中科院、上科院等113所科研院所,是全區高科技產業發展的重要量和創新源頭。
分享友人