chemical reduction 中文意思是什麼

chemical reduction 解釋
化學還原
  • chemical : adj 化學的，化學作用的；應用化學的，用化學方法獲得的。n 〈常 pl 〉化學製品；藥品。 fine chemicals...
  • reduction : n 1 縮小，減少；降級，降位；（刑罰等的）輕減；減速；減價，折扣。2 （城市、國家等的）陷落，投降，...
  1. Methods for chemical analysis of iron, steel and alloy. the hypophosphite reduction - iodimetric method for the determination of arsenic content

    鋼鐵及合金化學分析方法次磷酸鈉還原-碘量法測定砷量
  2. Preparation of nickle nanoparticles by chemical reduction method

    化學還原法制備金屬鎳納米顆粒
  3. German standard methods for the examination of water, waste water and sludge ; physical and physico - chemical parameters group c ; determination of the oxidation reduction potential

    對水.廢水和淤泥進行檢查的德國標準方法.物理和物理
  4. Spherulites dimension also decreases due to the chemical changes occurred during pan - milling. viscosity test shows that chain scission occurred during pan - milling, which caused slight reduction of mechanical properties. polypropylene / polyamide 6 ( pp / pa6 ) ultra - fine powder was prepared through pan - milling at ambient temperature

    通過磨盤碾磨在常溫下制備了聚丙烯/尼龍6 （ pp / pa6 ）超細復合粉體，其粒徑可通過碾磨時間、磨盤轉速、磨面靜壓力、碾磨溫度等工藝參數控s摘要一制。
  5. The variations in trace element contents and ratios may hold up a mirror to the lake - level fluctuations and climatic changes, which, in turn, have exerted a direct and important effect on the sequence stratigraphic development. collectively, the reservoir rocks from the yanchang formation consist dominantly of the delta front subfacies subaqueous distributary channel and channel - mouth bar microfacies and delta plain subfacies subaerial distributary channel microfacies fine - grained feldspar sandstones and siltstones. the reservoir rocks have been subjected to three stages of diagenetic and porosity evolution : ( 1 ) the porosity reduction by the mechanical compaction and chemical pressure solution during the early diagenetic stage ; ( 2 ) the porosity increase by the dissolution during the a substage of the late diagenetic stage, and ( 3 ) the porosity reduction by the cementation and filling during the b substage of the late diagenetic stage

    系統的儲層特徵研究表明，該區延長組儲層成因類型主要為三角洲前緣水下分流河道、河口砂壩及三角洲平原水上分流河道微相細粒長石砂巖、粉砂巖；儲層巖石經歷了壓實，膠結，溶蝕等成巖作用，歷經早成巖機械壓實和化學壓溶孔隙縮小期、晚成巖a亞期溶蝕作用孔隙擴大期及晚成巖a亞期（ b亞期）膠結充填孔隙縮小期三個成巖-孔隙演化階段；儲層物性總體上具有較低孔滲、低孔滲的特點，孔隙類型主要為粒間溶孔、殘余粒間孔隙、粒內溶孔、晶間孔及晶間溶孔，裂縫不發育，儲集巖排驅壓力和中值壓力較高，孔隙結構類型以細小孔-微孔隙，微細喉-微喉型為主。
  6. The low solubility of calcium zincate produced from the chemical reaction of zinc oxide and calcium hydroxide in alkaline solution can improve the cycling life the zinc electrode, and the discharge capacity will tend to be stable. furthermore, the effects of la2o3 additives on the electrochemical performances of zinc electrodes were investigated. the results shows that the addition of la2o3, in zinc electrode can improve the area of reduction peak and the hydrogen evolution potential which means the cathodic hydrogen evolution reaction can be hindered

    氧化鋅與氫氧化鈣在堿性溶液中化學反應生成的難溶於堿的鋅酸鈣可以使鋅電極的循環壽命得到提高，放電容量也趨于平穩，此外還考察了氧化鑭對鋅酸鈣電極電化學性能的影響，結果表明：添加適量氧化鑭能明顯改善鋅電極的電化學性能，使鋅電極的還原峰電位正移，電極反應可逆性得到改善，同時也可抑制鋅電極析氫反應的發生，提高了鋅電極的陽極電流，對陽極反應有一定的活化作用；同時還可以改善鋅電極的放電特性，增加電極的放電容量。
  7. Abstract : by analyzing theae factors which influence the reduction process and ferrous powder ' s quality, reduction temperature, reduction time, scale thickness and additive quantity are chosen to discuss their effect on the chemical composition and the crashed property of sponge iron

    文摘:分析了馬鋼軋鋼鐵鱗的原料狀況，選取還原溫度、還原時間、料層厚度和添加劑等工藝因數來研究它們對海綿鐵化學成分和破碎性能的影響規律，為海綿鐵的工業生產提出合理的工藝制度。
  8. This paper mainly aims at the strategic demands for large - aperture lightweight mirror proposed by high - tech development. its main research contents are : select material blank for lightweight mirror according to physical and chemical properties of optical glass ; analyze and calculate the deformation quantity of the mirror with finite element method ; design and optimize mirror body structure of 400 lightweight plane mirror and 450 lightweight spherical mirror, analyze glass cutting principle, design specisl - use grinding wheel structure, select reasonable technological parameters to implement the processing of weight reduction holes on 400 plane mirror ; analyze etching mechanism of hydrofluoric acid, look for the technological parameters such as the optimal acid concentration and etching time etc. ; eliminate the stress of weight reduction holes and micro - cracks on 400 lightweight plane mirror ; discuss the processing principle and

    本論文的研究主要是瞄準國家高技術對大口徑輕型鏡的戰略需求而開展的。主要研究內容是：根據光學玻璃的物理與化學性能，選擇輕型鏡坯材料；用有限元法對鏡子的變形進行分析、計算，找出變形規律，優化設計400mm輕型平面鏡、 450mm輕型球面鏡鏡體結構；分析玻璃切削原理，設計專用磨輪結構，選擇合理工藝技術參數，完成400mm平面鏡輕量化減重孔的加工；分析氫氟酸腐蝕光學玻璃機理，尋找最佳酸濃度、腐蝕作用時間等工藝參數，實現400mm平面鏡減重孔應力與微裂紋的消除；討論分離器加工原理和工藝技術特點，完成400mm平面輕型鏡面形加工。
  9. The increase of waste from cities, the heavier of agricultural chemical pollution, the serious pollution produced by poultry waste, as well the pollution produced with the development of township enterprises have affected the organic production of agricultural ecosystem, reduced the quality of produce, weakened the soil ecological process, destroyed biodiversity, weakened the function of climate regulation and disaster - reduction, decreased insect pollination and the effect of control pest

    城市污染物排放增加，農業化學品污染加重，農村畜禽糞尿污染成災以及鄉鎮企業污染發展影響了農業生態系統有機質生產，降低了農業產品品質，減弱了土壤生態過程，破壞了生物多樣性，減弱了氣候調節與減災功能，減少了動物傳粉與有害生物控制效應七項生態服務功能。
  10. Risui s restoration reduction water is a product developed by pursuing a logical theoretical structure based on chemical evidence basis

    「理水的還原水」以化學根據為基礎，從理論出發開發產品。
  11. The most widely used techniques for the preparation of amorphous alloy catalyst are classified into rapid quenching method, chemical reduction method and impregnation - chemical reduction method

    通過驟冷法、化學還原法、浸漬還原法可以得到滿足不同催化反應需要的非晶態合金催化劑，並可以通過制備條件的變化調變催化劑的性能。
  12. Abstract ： in this paper, the methods including the reduction ball - milling, the optical induction, the chemical reduction, the liquid phase reduction, the liquid - solid phase reduction, the spray pyrolysis, the evaporation and condensation, and the atomization et al. which have been used for preparation of nanometer silver flakes and nanometer spherical silver powders in china since the 1990s were summarized under categories, the features of each method were compared, the development of preparation technology was looked forward to, in the meantime, the present application and potential application of nanometer silver powders were expounded

    摘要：本文分類總結了20世紀90年代以來國內納米片狀銀粉和球形銀粉的制備方法，包括還原球磨法、光誘導法、化學還原法、液相還原法、液-固相還原法、噴霧熱分解法、蒸發冷凝法及霧化法等，比較了各種方法的優缺點，展望了納米銀粉制備技術的發展，同時，論述了納米銀粉現有的和潛在的用途。
  13. Preparation of nanometric ag powder by solution chemical reduction method

    液相化學還原法制備納米銀粉
  14. Ptru / c, ptruwo _ 3 / c and ptrumoo _ 3 / c are prepared by chemical reduction of the appropriate salt solutions, and structural characterizations are carried out with x - ray diffraction. the result indicates pt and ru form alloy and the transition metal oxides are existed in amorphous form

    通過化學還原法合成了ptru / c ， ptruwo _ 3 / c和ptrumoo _ 3 / c三種碳載合金催化劑，並進行xrd及tem測試，發現鉑釕組成了合金相，而過渡金屬則是以無定型的結構存在的。
  15. Cu - ag alloy powders prepared by chemical reduction method and their properties

    化學還原法制備的銅銀合金粉及其性能
  16. Preparation of ultrafine nickel powders using ultrasonic s pray by chemical reduction in aqueous solution

    超聲波噴霧液相還原法制備超細鎳粉
  17. Preparation of co - b amorphous powder by chemical reduction and investigation of crystallization kinetics of this powder

    非晶粉末的化學還原法制備及晶化研究
  18. Sn - co alloys were prepared by chemical reduction and ball milling, and the electrochemical performance of the alloys was investigated

    對制備合金材料的燒結溫度和時間等工藝參數對合金的性能的影響進行了分析。
  19. The alloys exhibited good cycle performance and high capacity in the initial cycles. it was found that the reversible capacity of sn - co alloy prepared by chemical reduction retained 600mah ? g - 1 after 25 cycles

    採用化學還原法制備了sn - co合金材料，獲得了較高的容量，以及初期的良好的循環性能，容量在25次循環以內保持在600mah ? g - 1以上。
  20. And cu6sn5 alloy were synthesized by chemical reduction between cu ( ii ), sn ( iv ) and zn. samples were characterized by xrd, sem and tem. the results showed that b sample was globe - shaped, ultra - fine hexagonal cosn alloy ( 80 ~ 200nm ) and c sam

    認為可能原因是cosn合金樣品顆粒過大，充放電循環過程中逐漸粉化失效，容量迅速衰減；而納米cu - sn 、 cu6sn5容量衰減是由於納米材料比表面積很大，充放電循環過程中易發生團聚
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