最佳壓力比 的英文怎麼說

中文拼音 [zuìjiā]
最佳壓力比 英文
optimum pressure ratio
  • : 副詞(表示某種屬性超過所有同類的人或事物) most; best; worst; first; very; least; above all; -est
  • : 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...
  • 最佳 : the best; optimum
  1. For increasing the effective material peak - value power ( empvp ), solving the contradiction between enhancing the pmsm ' s flux - weakening capability in the electromotor state and reducing the pmsm ' s connatural adjustment ratio in the dynamotor state and improving the efficiency of the pmsm, some solving method are taken as follows : the influence of length / diameter ratio to the empvp is analyzed, and the optimum size of length and diameter is chosen

    主要是從提高電機的有效材料峰值功率、解決pmsm提高電動機運行狀態時的弱磁擴速能和減小發電機運行狀態時的電調整率之間的矛盾及提高電機的效率著手,分析了長徑、氣隙長度對有效材料峰值功率的影響,並確定了它們的尺寸。
  2. By the large quantity of indoor and field soil mechanics test, this paper investigated physics and mechanics property of xigeda stratum and xigeda compounding filling, profoundly and systematically studied on shearing strength, cbr ( including indoor cbr and field cbr ) and intensity feature of xigeda compounding filling. the new achievement and cognition as follows : ( 1 ) cbr value is decided by moisture content and mudstone content of xigeda compounding filling. the filling material can satisfy minimum intensity standard of express highway when mudstone content is less than some fixed value, ( 2 ) this paper established field cbr standard value which can synthetically evaluate the filling material nature and field compaction degree. ( 3 ) the optimal compacting mean of xigeda compounding filling is hard oscillation first and weak oscillation later, not traditional way which is weak oscillation first and hard oscillation later. ( 4 ) this paper put forward the conception of optimum moisture content in construction different from optimum moisture content of indoor impaction

    本文以昔格達填料強度特徵為研究對象,通過大量的室內及現場試驗,從昔格達地層巖組的物理學性質、昔格達填料的物理性質入手,對昔格達填料的抗剪強度、室內承載及現場承載特徵進行了較系統地研究,獲得了如下認識及進展:昔格達混合填料承載值受填料含水量及其中泥巖含量的影響,當泥巖含量小於一定值時,昔格達混合填料具有較高的承載值,能夠滿足高速公路對填料的低強度要求;建立了綜合評判昔格達填料性能及現場實效果的現場承載( cbr )標準;對于昔格達填料而言,的碾方式為先強振后弱振而不是傳統的先弱振后強振;提出了與室內擊實優含水量相區別的施工含水量的概念。
  3. A lot of experiments have been done in the process of exploiture soft packaging li - ion battery about how to choice the rational arts and crafts. the content include : how to deal with the collector, add how much pvdf in the material, how long the material need to stirring and the right viscidity, how much condubtivity agent the electrode need, what theckness is best, choice different collectors, the degree of dryness of the electrode, theckness of pressed model, how much electrolyte will be added, placement how long after added the electrolyte, system of formation how to influnce the battery, in formation the battery need or not need preesure from outside, how to vacuumize and the optimize matching positive pole and negative pole. with these practice make sure the parameter of the positive pole should less than 90 m ; according to different vacuumize order the conduc - tivity agent in anode will be 5mass % and 9mass %, respectively, and in cathode the data is 2mass % ; every 100mah added to 0. 4 ml electrolyte ; before formation the battery should be placement 8 hours and the system of formation must be less than 0. 01c before the voltage reach to 3. 0v ; should press in outside when battery in formation ; to these batteries which capacity more than 350mah the vacuum time not excess 15s ; the optimize matching positive pole and negative pole between 2. 10 : 1 and 2. 15 : 1. finally make out the battery which cycling performance and security are all very well

    液態軟包裝鋰離子電池的研究主要是對關鍵工藝進行了優化設計,具體包括:集流體的處理、 pvdf的加入量、漿料攪拌時間和粘度、導電劑的加入量、電極膜的厚度、不同集流體的選擇、電極膜的乾燥程度、型的厚度、電解液的加入量、注入電解液后靜置時間的長短、化成制度的影響、化成時電池所具有的影響、抽真空的處理、正負極活性物質的匹配。後確定出液態軟包裝鋰離子電池工藝參數:正極膜的厚度小於90 m ;根據化成時不同抽真空順序,確定正極膜中的導電劑的加入量分別為5mass %和9mass % ;負極膜中導電劑的加入量為2mass % ;電解液的加入量為每100mah添加0 . 4ml ;化成前電池的靜置時間應當大於8h ;電池在3 . 0v之前採用小於0 . 01c的化成制度;在化成過程中應當施加一定的外部;對於350mah的電池抽真空的延時不應大於15s ;而正負極活性物質的質量應當在2 . 1 : 1 2 . 15 : 1之間。
  4. It ' s hard to get a qualitative relation, but can divide the changing process into several stages, among these stages, there is a best proportion of compression a. that can get the highest operation rate of resources, that is, consumes the least resources but contracts the greatest volume. the paper also gives us a analysis of the economy of packing the compressing wood piece

    木片在實過程當中對外產生的內抗的變化是十分復雜的,難以尋找一個定量的關系,但可劃分為幾個階段性的變化過程,在這幾個階段中存在著消耗能源少而體積收縮大,即能源利用率高的,並分析了木片縮打包的經濟性。
  5. As compared with the pressure of carrier gas, the subatmospheric pressure is more favourable condition to atomize the hydride, so the atomization temperature was lower ( about 650 )

    由於硒化氫的原子化是在負下完成的,它將或載氣下更有利於氫化物的原子化,因而使硒化氫原子化的溫度降低。
  6. A reasonable position of driving nozzle helps to achieve the maximum material flow that also depends on other parameters such as backpressure, properties of conveyed material and driving gas. it is observed that, an increase of convergent section angle is harmful to the pneumatic conveying system, and also influences on the mass flow rate of conveyed material, the distribution of static pressures in injector and the pressure drops of conveying pipe. in addition, within a reasonable scope of air mass rate, increasing the driving jet velocity is more advantageous than enlarging the dimension of driving nozzle

    試驗研究發現,氣體噴嘴位置對氣固噴射器的輸送能影響大,氣體噴嘴存在某一位置,而這一位置與背、輸送物料特性和輸送風特性相關聯;氣固噴射器的收縮角對其輸送能、內部靜分佈和輸送管阻特性均有適量影響,收縮角增大對整個輸送系統均不利;在適當的輸送風范圍內,提高氣體噴嘴出口速度擴大氣體噴嘴尺寸更為有利,但氣體噴嘴出口速度過高會增加氣固噴射器和輸送管內的能量損耗,給輸送帶來不利的影響;系統背與氣固噴射器的氣體噴嘴出口速度的選取有關。
  7. Many researches have been done with the simulation model. it was found that some structure parameters such as the diameter of the driving piston, the diameter of the buffer piston, the stiffness of the valve spring, the compress ratio of the buffer piston, and the flux area of the solenoid valve etc. have great effect on the performance of the haecvvs. for certain performance demand of the variable vale system, there is a most suitable combination for the structure parameters

    通過對電控可變氣門系統的主要結構參數,如動活塞直徑、緩沖活塞直徑、氣門彈簧剛度、緩沖活塞實際、電磁閥通流面積等參中共軌電控柴油機可變氣門系統的研究數對電控可變氣門系統啟、閉特性的影響規律的研究發現,動活塞直徑、氣門彈簧剛度、電磁閥通流面積對電控可變氣門系統啟、閉性能起著決定性的作用,對於一定的氣門啟閉規律要求,這些結構參數存在一組值。
  8. Principal conclusions were drawn as the following : the non compatibility of pressure or velocity of the gas on both sides of the contact surface is the cause of the formation of shock wave ; the heating effect of reflective shock wave to driving gas during charging or exhausting process is the internal mechanism of peak oscillating effect, and all the factors that influence the formation and the running of the shock wave will influence the peak oscillating frequency, cooling effect

    主要結論如下:熱分離機內激波形成的原因是射氣瞬間接觸面兩側和速度不相容;峰值振蕩效應的內在機制為反射激波對充氣階段的驅動氣或低溫排氣的加熱,凡是影響激波形成及運動的因素都將對峰值振蕩頻率、冷效應及熱效應產生影響;當充、排氣時間為0 . 1763時,射流激勵頻率出現在高階峰值振蕩頻率上。
  9. For the uf progress, the service pressure control below 0. 12mpa is quite reasonable. the best water flushing method is direction flushes - the recoil flushes - suitable flushes. the best flush time is 60 - 80s ; the best recoil washes current is about 2 - 2. 5 times of the produce water current

    2 .在超濾工藝中,操作控制在0 . 12mpa以下較合理;沖洗方式為順沖-反沖-順沖;的反沖洗時間為60 - 80s ,的反沖洗流量為產水流量的2 - 2 . 5倍。
  10. A new calculation method for optimizing diesel engine performance, called nonlinear regression - mess method, is put forward. in this paper, 25 groups of simulated values are calculated from the diesel engine working model, specific fuel consumption, peak pressure, rate of pressure rise, nox and peak temperature are fitted into explicit function about compression ratio and fuel injection advance angle

    本文利用柴油機工作過程模型,得出25組模擬計算數據,利用非線性回歸將油耗、大爆發升高率、 no _ x濃度及高燃燒溫度擬合成和噴油提前角的顯函數,並用網格法進行優化,用c語言編制了優化計算程序,得出和噴油提前角,使其優化匹配。
  11. The results show that the printing press assuring best printing ink absorbency of paper is dissimilar at different printing speed conditions, the glazed printing paper ' s printing ink absorbency is more sensitive than the coated art paper to printing press, and at the same condition, the coated art paper press ' s demand is lower than the glazed printing paper

    結果表明,在不同印刷速度下保證紙張吸墨性的值是不同的,膠版紙的吸墨性對印刷較敏感;在相同條件下,銅版紙對印刷的要求低於膠版紙。
  12. Find the law of the influence from the injection pressure to the filling time and the cavity pressure and make certain of the best filling time, injection time and injection pressure. though the analysis of the flowing velocity and pressure spread of the key position element in the injection parts in different gate position, we forecast the injection parts quality and the possibility injection flaw and its position, optimize the gate position. in this paper, though the research of analogue of the runner system of metal - powder injection molding and the process of injection molding, we get the law of how the injection parameter influence the injection process

    在相同的注射條件下,通過分析喂料在不同直徑和長度流道中的流動規律,得到了喂料在流道中的速度場、場和溫度場,找到了流道長徑的合理取值范圍,並得出通過改變流道設計可實現對現有設備資源充分利用的結論;給出了不同注射下,型腔與充模時間關系曲線和喂料熔體平均充填速度與充模時間關系的曲線,得到了注射對充填時間和型腔的影響規律,確定了的充模時間、注射時間和注射;通過分析採用不同位置澆口注射時注射件關鍵位置單元的流動速度和分佈,預測了注射件的成形質量,或可能產生的注射缺陷及位置,優化了澆口設置。
  13. Aimed at some problems such as short spraying distance, electricity - leaking and reverse ionization among electrostatic nozzles existing in the country, a induction charging and pneumatic energy electrostatic nozzle was designed. the basic designing theories, structure and working process of this nozzles were theoretically specified in the paper. and then the atomization quality and charge performances of this nozzle and its affecting factors were studied by carrying out performance experiment and statistic analysis. result of the studies indicate : ( 1 ) some progress were made in solving the problems list above ; ( 2 ) from this nozzle, droplet were minute and uniform, and higher charge - mass ratio can be obtained under lower electrostatic voltage, thus the atomization quality and charge performance of this nozzle were both better ; ( 3 ) within the experiment extend, air pressure at 0. 2mpa, electrostatic voltage at 2400v were the most suitable parameters for the nozzle ; ( 4 ) the regression equations for describing droplet size, intensity of spray current and charge - mass ratio of this nozzle obtained from the experiment data had higher forecast precision ; ( 5 ) cross - effect of all factors were not significant, the atomization quality and charge performance were relative dependency affected by the factors

    諸試驗因素中,充電電和噴孔直徑對霧滴荷質均有極顯著的影響;氣體和液體流量對霧滴荷質的影響均不顯著;影響霧滴荷質的主要因素依次為充電電和噴孔直徑; ( 8 )在300v 、 600v 、 1200y 、 1800y 、 2400v 、 3000v六種充電電t ,霧滴荷質先隨充電電的增加而增大, 2400v后荷質減小,推測:對于所研製的噴頭可能存在一個充電電; ( 9 )由充電電和噴孔直徑的不同搭配所得霧滴荷質不同這一結果,可看出,較大充電電需配備較大噴孔直徑以增強霧滴荷電效果; ( 10 ) td3 . 6和td3 . 4兩噴頭的霧滴荷質曲線趨于重合,說明噴孔直徑大於滬3
  14. Calculating result showed : the thrust changing caused by the magnitude of at / ac was more larger than that both of the pressure index : " n " and of the chamber diameter, and the best thrust could be get when at / ac < 0. 3

    由數值計算可知, at ac的大小變化所引起的推變化指數n和藥室直徑的變化引起的變化大得多,而且當at ac 0 . 3時,可以得到的推效果。
  15. And then, at the same condition of thickness, analyzing the deforming and reversing process of the diaphragm under three different kinds curves of time - pressure, a best time - pressure curve was gotten

    隨后,在相同厚度分佈的情況下,又分析較了3種不同加載曲線對膜片變形行為的影響,得到了-時間曲線。
  16. Cid - icp - aes has the advantages of high sensitivity, high signal - to - noise and high quantum efficiency, which nearly reaches theoretical limit value of theoretical parts of an apparatus ; it can memorize thousands of spectra lines at the same time. cid - icp - aes is the newest model, and there are still few articles to report analytical character of this type, as this result the optimum of operating condition and the effect of analytical parameters for photometric precision, signal - to - noise and detection limits are studied : r. f. power is 11 sow, nebulizer pressure is 28psi, the measurement time is 3 times and the integral time is 20s

    本實驗室的光譜儀是當前新型號的全譜直讀光譜儀,這類新型裝置分析性能的研究報道較少,因此研究著重分析了參數對測量精密度、線背及檢出限的影響,對儀器操作條件進行了摘要優化:發射功率採用1150w ;載氣為28psi ,測量次數選擇3次,積分時間為205 。
  17. On the basis of orthogonal test, the optimum procedure parameters were determined. it is evaporating temperature of 750, reaction pressure of 4000pa and o2 content of 50 %

    以此為指標對制備工藝優化,其工藝為:蒸發溫度750 、反應4000pa和o _ 2在混合氣體中的例50 。
  18. For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation

    數值模擬採用fluent軟體,計算結果用excel進行處理,通過對大量數值工況進行數值模擬計算,結果表明:對于單側百葉風口,計算表明: 1 )對于公式p = ( ~ 2 ) 2 ,的理論計算值中定義為流體流經百葉風口內部時的速度,即有效速度,而工程上常使用流體的來流速度來計算,計算表明,的理論計算值與工程應用值的關系為( _ (理論) ) ( _ (工程) ) = 0 . 813 ; 2 )當來流速度一定時,擋板傾斜角度越小,損失越小、出口速度越小;因此在要求進口風速較小的場所,如播音室、圖書館等,宜採用擋板角度30的百葉風口;在要求進口風速較大的場所,如電影院、辦公室等,百葉擋板的角度應選45 ; 3 )當來流速度一定時,百葉擋板的擋板寬度b與擋板間距h的值b h越大,損失越大,出口速度越小,計算表明,鑒于損失、出口風速、板間形成渦流區的大小,百葉擋板的b h值取0 . 8到2 . 0之間, b h = 1 . 2為值; 4 )當來流速度一定時,在計算的條件下,當百葉擋板寬度b = 40mm時,百葉擋板的阻系數小,考慮到渦流區等的影響,建議選用10mm b 50mm的百葉擋板;西安建築科技大學碩士學位論文5 )百葉擋板的厚度取為1 . sinln為好; 6 )百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板,利用其較好的導流作用,可得到更好的出流效果。
  19. By analyzing microstructure and morphology of the composites at the different pressure and different sintering temperature, optimal craft parameters of primary pressing - sintering were ascertained : 350mpa ( pressing ) + 400 c + lh ( clearing gas ) + 800 c + 40min ( sintering ). after primary press, the carbon fibers showed some directional distribution

    通過對不同和燒結溫度下復合材料的顯微組織形貌,確定初燒結的工藝參數為: 350mpa制+ 400 1h除氣+ 800 40min燒結。初后,碳纖維在基體中的分佈產生了一定的取向性。
  20. The dependences of the magnetostriction of epoxy bonded smfe2 composites on binder content, model pressure and sample size were determined. the magnetostriction of samples is the maximum when the binder content is in a range of 4 % - 6 %, and it increases with increasing the model pressure from 16 mpa to 62 mpa

    當粘結劑與磁粉的質量在4 : 100到6 : 100之間,粘結smfe _ 2具有的磁致伸縮性能;當模小於62mpa時,隨著的增大粘結smfe _ 2合金的磁致伸縮增大。
分享友人