ultrafine particle 中文意思是什麼

ultrafine particle 解釋
超微顆粒
  • ultrafine : 超濾的
  • particle : n 1 顆粒，微粒；微量，極少量。2 【物、數】粒子，質點。3 【語法】虛詞，不變詞〈冠詞、副詞、介詞、...
  1. By using laser light scattering ( lls ) and scanning electron microscopy ( sem ), the particle sizes of ultrafine silicon dioxide diminish and the congeries dispersibility were obviously improved, which shows that the hydrophobic property of ultrafine silicon dioxide after being modified has been much more strengthened, this surface modification provides wide market to reuse ultrafine silicon dioxide waste material

    表明超細二氧化硅顆粒表面鍵合了疏水性有機分子鏈，蔬水性增強，達到了改性目的，為超細二氧化硅廢料的回收利用提供了廣闊的市場。
  2. Contrasted study on pharmacokinetics of schisandrin in shengmai ultrafine particle and its pulvis

    生脈超微顆粒與其散劑中五味子醇甲藥代動力學的對比研究
  3. Fractal description of particle size distribution of ultrafine coal powder

    超細煤粉粒度分佈的分形描述
  4. By means of sem, tem, laser scattered particle analyzer, etc., the formation mechanism of ultrafine sio2 particle was studied. it was found that at the initial stage, the sio2 particle consisted of some minicrystal, but after the initial stage the sio2 particle was formed by some soluble aggregated substance growing on the surface of the early particle

    運用掃描電鏡、透射電鏡、激光粒度分析儀等檢測手段，探討了體系中超細二氧化硅顆粒的形成機理和過程，指出超細二氧化硅粒子前期是由體系中的微晶核組成，中後期則由體系中的可溶性縮合物在其表面生長而成。
  5. It was demonstrated that the reaction temperature, solvent, concentration of the reactants and catalyst, ageing time affected the particle size and distribution. by controlling these factors or feeding teos step after step, monodispersed and spherical ultrafine sio2 powder could be prepared

    討論了醇、水、氨、正硅酸乙酯、溫度、陳化時間等多種影響因素對顆粒粒徑及粒徑分佈的影響，得出了制備超細二氧化硅粒子的優化的工藝條件。
  6. Abstract : this paper dicussed the preparative parameteres synthesized mullite ultrafine powder by sol - gel and co2 scfd ( supercritieal fluid drying ) method from teos and al ( no3 ) 3 ? 9h2o as raw materials. the control parameteres of the colloidal particle size forming in sol - gel process and the gel structure and the scfd were studied by, xrd, tem and bet techmiques

    文摘:研究了以正硅酸乙酯和硝酸鋁為原料，採用溶膠一凝膠法結合co2超臨界流體低溫乾燥技術合成莫來石超細粉的制備參數控制，並利用xrd 、 tem和bet 、技術研究了溶膠-凝膠過程中溶膠膠粒大小的控制和凝膠結構的控制及超臨界流體乾燥技術的控制。
  7. Diamond ( diamond glass ) with a large polishing powder particles to the use and performance : ultrafine polishing powder particle size, particle size uniform, cut power and polishing speed, high - yield diamond, easily washable, is essential to the processing of diamond polishing materials

    信息描述：水鉆用大顆粒拋光粉的用途及性能：拋光粉粒度超細，粒度均勻，削力強，拋光速度快，水鉆成品率高，易清洗，是水鉆加工必不可少的拋光材料。
  8. X - ray powder diffraction patterns show that the nickel powder is cubic crystallite. the average particle size of the ultrafine nickel powder is 50nm

    結果表明，控制溶液ph值在9 10之間，選用水合肼為還原劑可得到高純度的納米鎳粉。
  9. The average particle size was from 50nm to 2um. a compounding particle was prepared by coating monodispersed and spherical ultrafine silica particles with titania which obtained by the hydrolysis of ti ( so4 ) 2

    以超細單分散球形二氧化硅粒子為載體， ti （ so _ 4 ） _ 2為原料，成功制備了在二氧化硅粒子表面包覆二氧化鈦的復合粒子。
  10. Re cerium oxide polishing powder and the use of performance : ultrafine polishing powder particle size, particle size uniformity, suspended strong cutting edge polishing speed, glass high - yield, easily washable, glass processed products essential to the polishing material

    信息描述：稀土氧化鈰拋光粉的用途及性能：拋光粉粒度超細，粒度均勻，懸浮性強，削力強，拋光速度快，玻璃成品率高，易清洗，是玻璃工藝品加工必不可少的拋光材料。
  11. The visualisation system allows video images of individuals ' activities to be played back alongside the ultrafine particle concentrations they are exposed to

    成像系統可以播放每個人的活動以及它們所處環境中的細微顆粒物的濃度？ ？
  12. On average, taxi passengers were exposed to more than 100, 000 ultrafine particle counts per cubic centimeter. bus travelers were exposed to just under 100, 000 and people in cars about 40, 000. pedestrians and bicyclists, meanwhile, were exposed to counts of just 5, 000 and 8, 000, respectively

    研究人員發現，平均來說，出租車乘客處于每立方厘米超過10萬個超微顆粒的環境中公共汽車乘客處于每立方厘米不到10萬個超微顆粒的環境而私家車中的人所處的環境為每立方厘米4萬個超微顆粒。
  13. The effect of particle size of explosive on the yield of the explosively synthesized ultrafine diamonds

    炸藥粒度對爆轟合成超細金剛石得率的影響
  14. Researchers measured levels of ultrafine, traffic - produced pollution particles on busy london streets using a newly developed particle counter fitted with a video recorder. the equipment allowed them to match particle levels with each of the five modes of transport

    英國研究人員使用一種新開發的微粒計數裝置並配備一臺錄像機，對倫敦一些繁忙街道上因來往車輛而產生的污染物微粒水平進行了測量。
  15. The hexagonal barexfe, 2. xo, ( re denote la ^ nd > sm and gd ) ultrafine powders with m - type structure were firstly synthesized by a novel technique - - - - - - sol - gel combustion synthesis method which combines sol - gel method with low temperature combustion synthesis method. based on theoretical analysis and experimental study, the effects of the composition of the gel, the different kinds of intermediate, strength of solution, the amount of complexing agent, the different kinds of anions, the adding of dispersant, auto - propagating combustion and the condition in heat treatment of the gel on crystal phase, particle size, morphology and magnetic properties of bare ^ fe ^ o, ultrafine powders were firstly investigated systematically to clarify the optimum forming conditions

    本研究是在前人工作的基礎上，同時從制備方法和摻雜元素兩方面著手，以保證制備的粉體材料具有優異的性能，即首次利用溶膠?凝膠濕化學合成法和低溫燃燒合成法相結合的一種兼具二者優點的超細粉末新型合成技術? ?溶膠-凝膠燃燒合成法來完成稀土元素摻雜鋇鐵氧體bare _ xfe _ （ 12 - x ） o _ （ 19 ） （ re為la 、 nd 、 sm 、 gd ）超細粉末的制備。
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