選擇氧化工藝 的英文怎麼說

中文拼音 [xuǎnzháiyǎnghuàgōngyì]
選擇氧化工藝 英文
selective oxidation process
  • 選 : Ⅰ動詞1. （挑選） select; choose; pick 2. （選舉） elect Ⅱ名詞（挑選出來編在一起的作品） selections; anthology
  • 擇 : 擇動詞（挑選） select; pick; choose
  • 氧 : 名詞[化學] （氣體元素） oxygen （o）
  • 工 : Ⅰ名詞1 （工人和工人階級） worker; workman; the working class 2 （工作; 生產勞動） work; labour 3 ...
  • 藝 : Ⅰ名詞1 （技能; 技術） skill 2 （藝術） art 3 [書面語] （準則） norm; standard; criterion4 [書面語...
  • 選擇 : select; choose; opt; election; choice; culling; alternative
  • 氧化 : [化學] oxidize; oxidate; oxide; burning; rust; oxygenize; oxido-; oxy-
  1. The main work and the conclusion of the article are : ( 1 ) give a suggestion on the reaction mechanism and the principle of catalyst selection. ( 2 ) by comparison of the catalyst activity of solid superacid with the zinc oxide, stannous chlorde and tin ( ii ) octate in the synthesis reaction. we find that although its activity is lower than tin ( ii ) octate, obviously higher than that of traditional zinc oxide and stannous chlorde. from the point of preparation cost, we select solid superacid as catalyst

    但從催化劑的制備成本和工藝的角度選擇，固體超強酸具有明顯的優勢； （ 3 ）制備一系列單組元和雙組元硫酸促進氧化物固體超強酸，並用於丙交酯的合成反應，篩選具有最佳活性的固體超強酸催化劑： （ 4 ）使用so2 - 4 / zno - sno2 （ 2 ： 1 ） la3 +固體超強酸作催化劑，反應脫水時間1
  2. The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites

    研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體，需要嚴格控制配方中各種原材料的含量，優化配方;由於粉體活性受預燒條件的影響，所以對不同要求的鐵氧體選擇的預燒條件就不一樣，適當降低預燒溫度有利於獲得較高的起始磁導率，而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求，可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件，本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝，適宜的燒結工藝可以獲得理想微結構和組成，從而得到高性能的鐵氧體材料;而從材料的微結構上來看，要提高材料的截止頻率，就要適當地細化晶粒、增加晶粒內部的氣孔。
  3. The zircondri filin wtut rirconia wa prepared and the removing technology of the zirconia on the zirconium sdrices was obtalned. the methods of chemistry and magnetron sputtring plating were used in order to platc a palladium film, which is characteristic of self catalysis for hydrogen and the sole h - permselectivity on the clean rirconium sdrices prepared by the methods of electrochemitw and ( or ) high temperatur vacuum hydrgenization, which was firstly studied. the plating tedrilogy was obained and the surface modified zirconium membran was prepared

    在利用電化學法和真空高溫除氧加氫法去除了鋯表面氧化膜的基礎上，分別採用化學法、磁控濺射法兩種鍍膜技術在其表面上鍍上了一層對氫具有自催化分解、唯一選擇滲透性的金屬鈀膜，首次獲得了鋯基材膜表面上鍍鈀的制備工藝，成功制備了鋯表面改性選擇滲氫膜。
  4. Test study on passivation methods in chemical cleaning of boilers, including to use sodium nitrite, hydrogen peroxide, polyphosphate, hydrazine, acetone oxime, trisodium phosphate, and sodium carbonate, has been carried out, and combined with typical examples of application, recommendations for selecting these passivation methods and for using suitable passivation technology being put forwad

    摘要對鍋爐化學清洗中亞硝酸鈉鈍化法、過氧化氫鈍化法、多聚磷酸鹽鈍化法、聯氨鈍化法、丙酮肟鈍化法、磷酸三鈉鈍化法和碳酸鈉鈍化法進行了試驗研究，並結合典型的應用實例，提出了選擇這些鈍化方法的建議和適合採用的鈍化工藝。
  5. The lowest threshold current 1. 8ma is achieved with continuous - wave at room temperature, the maximum output power is 7. 96mw. for the resesrch work on the fabrication procedures, we discusses selective oxidation and selective wet etching

    利用濕法氧化和選擇性腐蝕相結合工藝研製出室溫連續工作的vcsel ，最低閾值電流為1 . 8ma ，輸出功率為7 . 96mw 。
  6. Abstract : a formula of sintering furnace charge is of key importance to the technological process of sintering in producing alumina by the methods of mixture combination. the choice of an accurate formula is necessary for gaining a high - quality sinter mixture and a better techni - cal and economic target

    文摘:燒結爐料配方，對混聯法生產氧化鋁燒結工藝過程有著十分重要作用，選擇正確的配方，對獲取高質量燒結熟料和較好的技術經濟指標具有十分重要意義。
  7. The research on surface work - hardening in high speed lapping

    選擇氧化工藝在垂直腔面發射激光器中的應用
  8. Water pollution was becoming intensified, while with the improvement of human ' s living standard, more attention was increasingly paid to the sanitation and safety of drinking water. so adopting advanced drinking water purification to obtain high quality water was necessary. by changing the different combination of drinking water ' s regular treatment process, ozonation, activated carbon and biological activated carbon, the paper chose the optimal treatment process, also the parameters of the process were analyzed through experiments, then the economic, reasonable process parameters were determined

    水污染不斷在加劇，而隨著人們生活水平的提高，飲用水的衛生和安全越來越被關注，因此有必要採用先進的飲用水深度處理技術來獲得優質飲用水，本文通過改變飲用水常規處理工藝、臭氧化、活性炭與生物活性炭的不同組合的中試試驗研究，選擇出了最佳處理工藝，又對最佳處理工藝的各個參數進行試驗分析，確定出經濟合理的工藝參數，在現有的條件下，對預臭氧化進行了生產試驗。
  9. Besides policy factors, five methods of cost - cutting of biodiesel are reviewed, including new raw material with higher oil content, shorter regeneration cycle, which is suitable for infertile soil and different climatic conditions ; heterogeneous catalysts ; new technologies ( e. g. supercritical methanol and ultrasonics ) ; higher added value utilization of by - product glycerin with simple method ( propylene oxide chloride, 1, 3 - propanediol, pyruvic alcohol etc. ) and moderate scale of production

    摘要綜述了除政策因素外，降低生物柴油生產成本的5種方法：選擇含油率高、再生周期短、適應貧瘠土地及不同氣候條件的新型植物原料；研究新型固體催化劑；引入新工藝（超臨界法和超聲波法） ；使用比較簡便的方法將廢棄的甘油轉化為高附加值的產品（環氧氯丙烷、 1 ， 3 -丙二醇、丙酮醇等）以及適度生產規模等。
  10. Abstract : in the present paper the progress was reviewed in the active filler metals with different temperatures for ceramic to metal brazing and related brazing technique of reducing joining - gap residual stress. it was recommended that the key developing field for our country should be the high temperature active filler with heat - and oxidation - resisting properties. the brazing techniques to reduce joining - gap residual stress and the principles to select transition layers for the joining gap were also introduced

    文摘:闡述了陶瓷/金屬釬焊用不同溫度的活性釬料及以降低焊縫殘余應力為中心的釬焊工藝進展；指出：在我國耐高溫、抗氧化性優良的高溫耐熱型活性釬料是重點發展方向；介紹了降低焊縫殘余應力的釬焊工藝和焊縫中間添加過渡層的選擇原則。
  11. The processing techniques to manufacture gap net polymer and gap fuel - rich propellant were determined by means of careful selections of curing parameter, proper curative and crosslinking agent, addition of stabilizer and etc. the mechanic property of gap propellant was modified by addition of chain extender. as a result, the gap fuel - rich propellant was developed. by means of dsc and pdta methods, the thermal decomposition characteristics of gap model fuel - rich propellant and its ingredients at both 0. 1 and 0. 5 mpa were investigated

    通過調節固化參數，選擇合適的固化劑和交聯劑體系，添加安定劑以及改進工藝步驟等方法，解決了gap預聚物及gap貧氧推進劑制備工藝中的關鍵技術；採用添加擴鏈劑的方法改善了gap貧氧推進劑的力學性能；最後研製出一個可實用的gap貧氧推進劑配方。
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