餾分數 的英文怎麼說

中文拼音 [liùfēnshǔ]
餾分數 英文
fraction number
  • 餾 : 餾動詞（蒸熱熟食） heat up; reheat
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 數 : 數副詞（屢次） frequently; repeatedly
  1. Distillate fuels - calculation of cetane index

    餾分燃料十六烷指數計演算法
  2. Test method for calculated cetane index of distillate fuels

    餾分燃料正十六烷指數計算的試驗方法
  3. Standard test methods for calculated cetane index of distillate fuels

    餾分燃料正十六烷指數計算的標準試驗方法
  4. Calculation of cetane index of middle - distillate fuels by the four - variable equation

    中間餾分燃料十六烷指數計演算法
  5. The industrial application showed that the key process parameters, such as the regenerator dense phase temperature and the temperature under the first tray of the fractionator bottom, etc. were obviously improved, which resulted in increasing conversion and light oil yield

    工業實踐表明，應用此控制明顯地改善了對再生催化劑溫度、分餾塔底第一層板下溫度等關鍵工藝參數的控制，提高了裝置的轉化率與輕油收率。
  6. Methods of test for petroleum and its products - determination of polycyclic aromatics in unused lubricating base oils and asphaltene free petroleum fractions - dimethyl sulphoxide extraction refractive index method

    石油和石油產品試驗方法.第102部分:未用的潤滑基油和不含瀝青烯的石油餾分物中多環芳香族環烴的測定.二甲硫析取物折射指數法
  7. The application experiment of aroma - producing active dry yeast in vinegar production demonstrated that the sensory quality, total acids content and total esters content of experimental samples were better or higher than that of contrast samples ; the flavoring compositions quantity, content and species in experimental samples were higher or more than that in contrast samples ( especially ethyl acetate content and ethyl lactate content increased by 0. 99 % and 1. 22 % respectively ) ; the use of dry yeast could increase flavoring compositions content in vinegar, better vinegar aroma, and improve vinegar quality ; and the optimum use level of dry yeast was 0. 2 % ( for main grains )

    摘要生香活性乾酵母的食醋生產應用試驗表明，試驗樣的感官質量及其總酸、總酯含量均比對照樣有所提高；試驗樣（蒸餾液）香氣成分的數量、含量和種類均比對照樣（蒸餾液）多，尤其乙酸乙酯、乳酸乙酯的含量分別提高0 . 99 %和1 . 22 % ；應用生香活性乾酵母可提高食醋中香氣成分的含量，改善了食醋香氣，提高了食醋質量；生香活性乾酵母的適宜用量為0 . 2 % （對主糧） 。
  8. Water quality - physical, chemical and biochemical methods - determination of phenol index : 4 - aminoantipyrine 4 - aminophenazone spectrometric methods after distillation

    水質.第2部分:物理化學和生物化學法.第12節:酚指數測定.蒸餾后4 -氨基安替比林光譜測定法
  9. Indeed, atmospheric distillation may be terminated with a lower boiling fraction ( “ cut ” ) if it is thought that vacuum or steam distillation will yield a better quality product or if the process appears to be economically more favorable

    但是，經過蒸餾處理的大多數原油，包括比重較大、粘度更大的原油，一般都分離為較輕組分（氣、汽油、粗汽油、煤油和粗柴油）和殘渣，或者更多稱作常壓重油。
  10. In the second place, based on the asu of buggenum igcc plant in netherlands, both static and dynamical model for distillation tower of the asu are created and some valuable conclusions are gained as well. finally, a compartmental simplified model is created for distillation tower of the asu, in order to reduce the simulation time and increase the simulation efficiency. the new model will be helpful to the further simulation and on - line optimal control for the asu of the igcc plant

    其次，本文以荷蘭buggenum電站的空分系統為原型，基於matlab建立了空分系統精餾塔的半圖形化動、靜態數學模型，並通過模擬，得出了一些有價值的結論：當空分系統的壓力變化時，氧氣產品濃度的響應時間常數為兩小時左右，說明空分系統是igcc電站最大延遲環節；而且雖然氧氣濃度最後會穩定在igcc電站所要求的范圍之內，但在過渡過程中會超出限制，這些都為igcc電站的安全運行及控制系統設計提供了有價值的信息。
  11. The tbp 750 simulated distillation analyzer can provide accurate data of components ( light oils to residuals ) of crude oils

    Tbp 750模擬蒸餾分析儀具有優良的性能，能夠提供原油樣品（從輕組分到渣油組分）的準確數據。
  12. To verify the effectiveness of the proposed hybrid fnn, this thesis addressed the estimation problem for the frozen point of light cyclic oil in a fluidized catalytic cracking unit ( fccu ) in a refinery. based on the sample data collected from the industrial unit, we built a soft sensor model by using an above hybrid fnn

    最後，針對某煉油廠催化裂化裝置主分餾塔輕柴油凝固點的軟測量估計問題，本文基於工業現場所採集的樣本數據，建立了混合結構神經網路模型，並討論該模型的在線自學習問題，同時與多層前向bp網路、徑向基函數rbf網路模型進行了比較。
  13. The azeotropic distillation of the system acetic acid - water - azeotropic agent ( isopropyl acetate and butyl acetate ) is simulated. due to the non - ideal behavior, nrtl - hoc and uniquac - hoc model is used to depict vapor - liquid phase equilibrium behavior of this system. concerning the liquid in the decanter, the stability is checked by tangent plane stability analysis, and the initialization of phase splitting calculation is produced. a good estimate of the phase fration is gotten by successive substitution with newton ' s method, and every component of two phase is gotten by mass equilibrium equation. finally, the solution of this equation is produced with successive substitution calcultion. the naphtali - sandholm method is used to simulation of azeotropic distillation. by virtue of this combined calculation method, the simulation is begun with operational data as basical data. the results of simulation accord with the operating data, which proved that the combined calculation method is credible

    該體系具有高度非理想性，氣液相平衡模型採用nrtl - hoc和uniquac - hoc模型，採用切平面判據法對進入分層器中的液相進行液相穩定性測試，提供液液相分離計算的初值，再結合牛頓拉夫森迭代法運算求得相分割系數，根據物料衡算求出各相組成，循環迭代可求得分層各組分數據，共沸精餾模擬計算採用那夫塔列-山德荷姆全變量迭代演算法。
  14. The text lays particular emphasis on the evaluation of the groundwater, involves the groundwater type, groundwater chemical characteristics, the amount of the water resource and the natural groundwater amount by using the method of numerical model after the calculation of the parameters, such as transmissivity, the coefficient of the flexible water release, with the data of the pumping test in the research zone

    採用visualmodflow地下水軟體進行數學模型的求解。在地下水流數學模型識別和驗證后，設計了兩種方案進行了地下水的預報。應用同位素分餾原理和質量守恆定律，確定不同含水層中地下水的成因及形成條件，建立本研究區地下水系統的水循環模式;採用模糊綜合評價方法對研究區內的水質進行了評價。
  15. The results indicate that the position of sensitive plates is located at the section of middle or upper in tower but not near by feeding plate, and the smaller reflux ratio, the closer overhead of distillation tower. accurate calculation for flash is solved using matlab, and the result is correct and reasonable. complicated multi - components distillation and crude distillation are simulated using chemcad, and results are reasonable about profiles of flow for vapor and liquid as well as temperature in the tower

    數值分析的結果表明精餾塔靈敏板位置並不在進料板附近，而是位於精餾段的中上部，且迴流比愈小，愈靠近塔頂;利用matlab實現了蒸餾過程的嚴格計算，與參考值比較，結果正確、合理;藉助于chemcad進行常減壓塔的穩態模擬計算，得出了流量和溫度在塔內的分佈，經過理論分析，結果合理，可為實際生產提供參考。
  16. In order to solve the problems effectively, under the auspices of 863 plan in china, the synthesis diagnosis has been carried by means of measuring and numerical imitating the combustion chamber of refining column, and some conclusions is such as : ( 1 ) through measuring the temperature and combustion in the burning chamber of the refining column, the result shows the temperature difference on the same level is more than that in height direction, and there is a few of co in bottom of burning chamber. ( 2 ) in order to ensure normal work of flue system in lead column in the course of zinc refining, theoretic calculation and measure about the flow resistance of exhaust gas are carried through. the results of study reveal that drawing out force of chimney is inadequate, which is mainly caused by illogicality of flue construction

    在研究過程中，採取了現場實測和數值模擬手段對韶關冶煉廠鋅精餾鉛塔燃燒室及排煙系統進行了綜合診斷，具體結果包括如下： （ 1 ）完成鋅精餾鉛塔燃燒室內溫度測試以及燃燒狀況的測試，結果發現：鉛塔燃燒室內水平方向的煙氣溫度並非均勻，而且其溫差比上下方向的溫差更大，以及鉛塔燃燒室尾部存在co未燃燼問題； （ 2 ）為了保證鉛塔煙氣系統的正常工作，對煙道系統的阻力進行了理論計算及測試分析，結果發現：鋅精餾鉛塔煙氣系統中煙囪抽力不夠，這主要是煙道結構不合理所造成的。
  17. The comparison of stomatal parameters in leaf cuticles between two fossil angiosperms from the pliocene in west yunnan and their nearest living equivalent species indicates a little higher atmospheric co2 level at that time than the present, while carbon isotopic composition of fossil cuticles demonstrates much higher carbon isotopic discrimination and slight lower water use efficiency, showing a warmer and wetter climate than today

    摘要對滇西騰沖新近紀兩種被子植物葉片及其現存對應種的氣孔參數和碳同位素組成的綜合分析表明：當時的大氣co2濃度略高於現在水平；化石種的碳同位素分餾值高於現存對應種，但水分利用效率低於現存對應種；這證明當時的氣候條件比當前更為溫暖濕潤。
  18. Standard test method for determination of aromatic hydrocarbon types in middle distillates - high performance liquid chromatography method with refractive index detection

    用帶折射指數探測的高效液相色譜法測定中間餾分中芳香烴的標準試驗方法
  19. It is separated into a few fractions which boil over different ranges of temperature

    它按沸點的幾個溫度范圍分成少數幾種餾分。
  20. The numeric experiment shows that the adaptive and parallel tabu search can solve successfully large - scale distillation separation sequence synthesis problem

    數值實驗表明自適應并行禁忌搜索演算法能夠成功解算大規模精餾分離序列優化綜合問題。
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