等溫壓力比 的英文怎麼說

中文拼音 [děngwēn]
等溫壓力比 英文
isothermal pressure ratio
  • : Ⅰ量詞1 (等級) class; grade; rank 2 (種; 類) kind; sort; type Ⅱ形容詞(程度或數量上相同) equa...
  • : Ⅰ形容詞(不冷不熱) warm; lukewarm; hot; gentle; mild Ⅱ名詞1 (溫度) temperature 2 (瘟) acute ...
  • : 壓構詞成分。
  • : 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動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
  1. Abstract : in the research of internal combustion engine, recordingin - cylinder pressure and temperature is an essential technique to study the thermal cycle of internal combustion engine. the combustion analyzer developed in this study will give both the measurements at sampling points per crank angle or sampling cycle, calculate and show the real time parameters which decide the working process of internal combustion engine, such as pressure accelerating rate, indicateed mean effective pressure, cycle - to - cycle variation, heat release rate, etc. compared with the imported congeneric products, the analyzer has many advantages such as chinese interface, low price, easy operateing, convenience in maintainance and easy upgrading

    文摘:為了測錄內燃機缸內的度,開發了一種內燃機燃燒分析儀.該分析儀由國產高速數據採集卡及自行開發的控制軟體組成.它不僅能精確設置每度曲軸轉角內采樣點的個數和採集循環數,而且在採集過程中能實時計算和表徵內燃機工作過程的升高率、平均指示、循環變動率、放熱率參數.經實際使用以及與國外產品相表明,此分析儀具有全中文界面、價格低、操作簡單、使用維護方便、功能便於擴充優點
  2. In this paper, the metal explosive working technique and the fabrication characteristics of metal vessels with double layers were introduced. based on the comparison between new and traditional techniques, the reliability of the technique for mould - less high energy integral forming of spheroidal vessels with double layers was stated, and the prospective application of this techniques to the fabrication of the low temperature pressure vessels was presented

    本文將從前言、金屬爆炸加工技術介紹、雙層金屬容器加工製造要點、新技術與傳統技術的對、無模高能整體分步成形雙層球型容器技術的可靠性和本技術在低容器製造領域里應用的前景六方面進行闡述。
  3. The studies show they are practical and promising functional molecules for opto - electronics. the following works put fc16ab to study physical chemistry properties of its monolayer and lb films with other molecules. the conclusions are as listed below : the surface pressure - molecular area ( - a ) isotherms of fc16ab and hexadecyltrimethylammonium bromide ( ctab ) on aqueous subphases were studied

    結論如下:在純水亞相上,我們通過較十六烷基甲銨鹽( ctab )和fc _ ( 16 ) ab的單分子膜-單分子面積( - a )線,得到二茂鐵片段的在氣液界面的取向隨著膜的增加而發生改變。
  4. The interface behavior between essence and ethylene - vinyl acetate copolymer pallets was studied so that necessary data were obtained to guide the preparation of fragrant masterbatch. the adsorption type and wettability between essence and the copolymer pallets were analysed by measurements of fourier transform infrared spectrum, surface tension, contact angle and specific surface area. the technical factors affecting absorptivity such as the charge ratio, temperature, pressure and stirring speed were studied by series of adsorption experiments. the results showed that the adsorption of essence on the surface of ethylene - vinyl acetate copolymer pallets is physical in nature. essence couldn ' t moisten the surface of ethylene - vinyl acetate copolymer pallets absolutely, but it could be soaked into the surface of the pallets partly. adsorptivity could be increased by enhancing the temperature, pressure and stirring speed, but the extension of adsorption time had little influence on adsorptivity

    研究了香精與乙烯/醋酸乙烯共聚物粒子之間的界面行為,以便為香型母粒的制備提供必要的理論依據.利用傅立葉變換紅外光譜、表面張、接觸角及表面面積測定手段,分析了香精與載體之間的吸附類型和潤濕作用.並通過一系列吸附實驗,討論了配料度、、攪拌工藝條件對吸附量的影響.結果表明,香精在乙烯/醋酸乙烯共聚物粒子表面的吸附為物理吸附;香精無法完全潤濕載體粒子表面,但可以對其形成部分浸潤;提高度、、攪拌速度可以增加吸附量,而延長吸附時間對增加吸附量貢獻不大
  5. Abstract : the interface behavior between essence and ethylene - vinyl acetate copolymer pallets was studied so that necessary data were obtained to guide the preparation of fragrant masterbatch. the adsorption type and wettability between essence and the copolymer pallets were analysed by measurements of fourier transform infrared spectrum, surface tension, contact angle and specific surface area. the technical factors affecting absorptivity such as the charge ratio, temperature, pressure and stirring speed were studied by series of adsorption experiments. the results showed that the adsorption of essence on the surface of ethylene - vinyl acetate copolymer pallets is physical in nature. essence couldn ' t moisten the surface of ethylene - vinyl acetate copolymer pallets absolutely, but it could be soaked into the surface of the pallets partly. adsorptivity could be increased by enhancing the temperature, pressure and stirring speed, but the extension of adsorption time had little influence on adsorptivity

    文摘:研究了香精與乙烯/醋酸乙烯共聚物粒子之間的界面行為,以便為香型母粒的制備提供必要的理論依據.利用傅立葉變換紅外光譜、表面張、接觸角及表面面積測定手段,分析了香精與載體之間的吸附類型和潤濕作用.並通過一系列吸附實驗,討論了配料度、、攪拌工藝條件對吸附量的影響.結果表明,香精在乙烯/醋酸乙烯共聚物粒子表面的吸附為物理吸附;香精無法完全潤濕載體粒子表面,但可以對其形成部分浸潤;提高度、、攪拌速度可以增加吸附量,而延長吸附時間對增加吸附量貢獻不大
  6. The convective term is solved by ausm + ( a sequel to ausm which means " the advection upstream splitting method " ). the 7 species 8 steps model and 7 species 7 steps model of hydrogen / air is used in the hydrogen reacting flowfield, the 9 species 5 steps model of methane, the 10 species 10 steps model of ethane and the 10 species 13 steps model of kerosene are used in the hydrocarbon reacting flowfield, the results of the distributions of velocity, mach number, pressure, static temperature, total temperature, species mass fraction and the combustion efficiency are gained, and the numerical results of the pressure of hydrogen and methane are compared with those of the experiment

    計算中通量項採用ausm +通量分裂格式,氫反應流場採用氫/空氣的七組元八方程模型和七組元七方程模型,碳氫反應流場採用甲烷的九組元五方程模型、乙烯的十組元十方程模型和煤油的十組元十三方程模型,得出了超燃發動機燃燒室流場的速度、馬赫數、、靜、總和組元質量分數分佈及燃燒效率性能參數,其中氫和甲烷的計算分佈與實驗結果進行了較。
  7. The working parameters ( specific enthalpy, entropy, flux of working fluid, reynolds number, etc. ), the configuration parameters of the main components, such as steam turbine - generator group, evaporator and ehd condenser and system efficiency were calculated on the base of thermodynamics theory

    文中以熱學理論為基礎,計算了低余熱發電系統的運行參數(焓、熵、工質流量、雷諾數、管路)和各主要組件如汽輪機-發電機組、蒸發器和ehd冷凝器的結構參數,並計算了系統的效率。
  8. Because of the difference of shape character and function between arch dam and gravity dam, the effect of loads, such as seepage pressure and gravity in arch dam, is smaller than that in gravity dam, but, the thermal load and dam contraction are turned into main loads

    由於拱壩的體形特點和工作原理與重壩不同,所以在拱壩中滲透與重作用荷載的影響要在重壩中小,而度荷載及壩體混凝土收縮則上升為主要荷載。
  9. Several feasible boundary conditions of thermal environment computations are provided. numerical simulation of thermal environment in that residential district is carried out depending on theoretical studies, wind environment simulations and thermal environment testing mentioned above. distributions of wind velocity, pressure, turbulence and temperature in two different periods are investigated and analyzed, and feasibility of thermal environment numerical simulation is proved by comparison of temperature and velocity values between testing and simulation in some tested spots

    提出幾種可行的熱計算邊界條件,在上述基礎理論研究、風環境模擬計算、熱環境測試基礎之上對住宅小區熱環境進行了數值模擬,分析了兩種時段內風場、場、湍流場及熱場分佈,並較了部分地點度和風速測試值與計算結果的差異,論證了熱環境數值模擬的可行性。
  10. These data consist of scalar data ( temperature, pressure, etc ) and vector data ( velocity, etc ), which are commonly defined on unstructured grids with complex topology

    這些數據類型較復雜,既有度、標量數據,又有速度矢量數據,而且它們通常定義在非規則網格上的拓撲關系也很復雜。
  11. Abstract : the forced state in key parts and their lifetime, the volume of high pressure chamber and ratio of pressure, the length of high pressure stroke and pressure stability, the relations between the deformation of high pressure chamber and temperature field and pressure field for three kinds of apparatus of making synthetic diamond under high pressure and high temperature were compared in this paper. the differences of these main apparatus were analyzed according to the degree of difficulty and ease in the technique, the choice of applicability and the cost and yield of them. it was emphasized that studying and developing the large sized belt - type press should be the way to make high quality saw diamond and change the state of making middle and low quality diamond in the diamond industry of our country, catching up with the international advanced level as well

    文摘:通過對高合成金剛石3種主要裝備在關鍵部件受狀況與使用壽命、高腔體積與利用率、高沖程大小與穩定性,高腔變形與場、場的關系方面的較,分析了3種主要裝備在技術難易程度、適用性選擇和投入產出的差異;強調了我國金剛石行業要改變當前只能生產中低檔金剛石的現狀,向生產高品級鋸片級金剛石的方向發展,與國際接軌,應該走大型化兩面頂的道路。
  12. The forced state in key parts and their lifetime, the volume of high pressure chamber and ratio of pressure, the length of high pressure stroke and pressure stability, the relations between the deformation of high pressure chamber and temperature field and pressure field for three kinds of apparatus of making synthetic diamond under high pressure and high temperature were compared in this paper. the differences of these main apparatus were analyzed according to the degree of difficulty and ease in the technique, the choice of applicability and the cost and yield of them. it was emphasized that studying and developing the large sized belt - type press should be the way to make high quality saw diamond and change the state of making middle and low quality diamond in the diamond industry of our country, catching up with the international advanced level as well

    通過對高合成金剛石3種主要裝備在關鍵部件受狀況與使用壽命、高腔體積與利用率、高沖程大小與穩定性,高腔變形與場、場的關系方面的較,分析了3種主要裝備在技術難易程度、適用性選擇和投入產出的差異;強調了我國金剛石行業要改變當前只能生產中低檔金剛石的現狀,向生產高品級鋸片級金剛石的方向發展,與國際接軌,應該走大型化兩面頂的道路。
  13. The difference among the elasticity modulus of various microstructures is probably the main reason, which caused the experiment results above. under the same experiment conditions, such as sample shape, size, surface roughness, establishment of testing system, pressure on the probe, and thickness of coupling medium, the variety of relative attenuation coefficient ( or ) in different heat treatment samples is measured and compared by measuring the attenuation obtained from the cylindrical surface of column. the result is as following : for 40cr and 38crmoal, a mt < az mq < a s < a p + f ; for gcrlssimn, a mt < a annea < s < a p + f ; and a increased with the increasing of frequency

    在保證試樣形狀、尺寸、表面光潔度、系統參數設置、施加在探頭上的以及耦合層厚度測試條件一致的情況下,利用棒材圓柱面測衰減系數法,分別測定並較上述不同熱處理試樣相對衰減系數的變化情況,得到的實驗結果是:對於40cr及38crmoal鋼, _ (低回火) (淬火) _ (高回火) _ (正火) ;對于gcr15simn鋼, _ (低回火) _ (退火) _ (高回火) _ (正火) ;且隨著頻率的提高,衰減系數均呈現增加的趨勢。
  14. About design programs of propylene tower post weld whole heat treatment, we have made analyses and compare from the various technical and economic aspects, and in vertical state of large pressurized vessel, we propose to adopt the internal combustion heat treatment method, in horizontal state of it, to adopt high temperature flue gas heat treatment method, and propose center combustion tube method as the future direction of technical developmnet insights

    摘要圍繞丙烯塔焊后整體熱處理的各種設計方案,從技術、經濟方面進行分析對,提出對超大型容器,立置狀態下宜採用內燃法熱處理;臥置狀態時宜採用高煙氣法熱處理,並提出將中心燃燒管法作為今後技術發展方向的見解。
  15. Octadecanoic acid ( oa ) / octadecylamine ( oam ) mixed monolayer were absorbed by hsa from the observation of surface pressure - molecule area ( n - a ) isotherms, differentiated curves of 0a / 0am monolayers and uv - vis, ft - ir spectra and fluorescence emission spectra of 0a / 0am lb film. the property change of 0a / 0am monolayer led to the change of crystal growth induced by the monolayer. when the concentration of hsa in subphases containing cac2o4 supersaturated solution rises from 0. 00 % ( wt % ) to 0. 10 %, cot, cod and com form beneath oa / oam monoalyer, respectively

    通過較含不同濃度人血清蛋白( hsa )的草酸鈣過飽和溶液亞相上十八酸十八胺( oa oam )混和單分子膜的?單分子面積( - a )線,微分曲線及oa oam混和lb膜的uv - vis光譜、 ft - ir光譜以及熒光發射光譜,可以看出, hsa吸附於oa oam膜上,使oa oam膜的性質改變,並且影響到oa oam單分子膜對草酸鈣晶體生長的誘導作用。
  16. The optimized experimental conditions are determined and the densities of some elements in the mental alloy standard samples are measured. the experimental results shows that the spectral intensity of the plasma enhances significantly with the increase of the operating voltage and the power density. ( 1 ) to the steel ally sample, the emission intensities of the spectra reach to the maximum values when the laser operating voltage is 1600v and the argon pressure is 600 torr. under the same pressure, the spectral intensity of the plasma in the argon atmosphere is stronger than that in the air. when the argon pressure is 320 to rr, the signal - noise ration is about 5 times than that which the argon pressure is 700 torr, but the temperature of plasma is less about 1000k

    ( 1 )對于光譜標鋼準樣品,當激光器工作電為1600v 、氬氣為600乇時,譜線強度達到最大,並且在相同強下,氬氣中的離子體與空氣中的離子體相,其輻射強度明顯增強;氬氣為320乇時的譜線信背約為600乇條件下的5倍,而離子體度卻下降了近1000k ,即離子體度隨環境氣的增大而增大;當激光束的焦斑在樣品表面上下移動時,激光誘導量、離子體的激發度、譜線強度都呈不對稱性分佈,其最大值對應的焦斑位置都位於樣品表面之下0 . 4mm左右。
  17. The main object of this paper is to design a diagonal impeller, which requires small size and high rotating speed the first step of design is to solve the radial distribution of parameters at the inlet and outlet of the blade, such as pressure, temperature and velocity. and then, according to the radial distribution, we can design the diagonal impeller blade. blade elements are defined on a cone, which pass through the blade edge streamline location

    其設計思想是採用準三維設計方法,先進行二維流場計算,在葉片軸向間隙中設立計算站,應用數值計算方法計算葉片前後緣的度、速度參數沿葉高的分佈,然後根據這些參數,選取若干個回轉面進行葉型設計;再將各回轉面上得到的基元葉型沿某一個積疊軸積疊起來形成三維葉片,最後對得到的三維葉片進行試驗,並對實驗結果進行分析較。
  18. The physical and mechanical properties of the raw materials and the recycled mixture are studied respectively in this paper by means of indoor experiments. the primary mechanical indexes of the recycled mixture are tested, including the unconfined compressive strength, the resilient modulus and the cleavage strength. the changing laws of these indexes are related to the cement content, the ratio of old asphalt mixture to lime soil and the aged - period

    初步對再生混合料的無側限抗強度、抗回彈模量和劈裂強度主要學指標進行了分析評定,總結了其強度性能與剛度性能隨水泥劑量、舊路面與灰土例和養生齡期的變化規律,並建立了各指標之間的相互聯系;此外對再生混合料的水穩定性、抗凍性、干縮特性、縮特性和疲勞特性也進行了試驗分析;在上述研究的基礎上還探討了原材料性質對再生混合料性能的影響。
  19. What the machine has superior to others is that it is able to insist the pressure invariableness, and pulse, shield and temperature can be adjusted

    與現有技術相cim具有保持沖洗在恆定的范圍、實現脈沖水流、能調節沖洗液度、噴槍上設有防護罩優點。
  20. In the study of the flash temperature, the formula is given for the flash temperature by the heat exchange theory. the effects of geometric and operating parameters on the flash temperature are studied

    在面齒輪傳動齒面瞬時升的研究中,利用傳熱學基本原理,推導了齒面瞬時升的基本公式,求解了各有關計算參數,研究了模數、角、傳動參數變化時對齒面瞬時升的影響。
分享友人