particle diameter 中文意思是什麼

particle diameter 解釋
顆粒直徑，粒子直徑
  • 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、...
  • diameter : n. 1. 直徑。2. （顯微鏡等的）放大倍數。
  1. With methyl methacrylate the particle diameter increases linearly with conversion indicating particle aggregation.

    採用甲基丙烯酸甲酯時，粒子直徑隨轉化率呈直線增大，這就表明粒子發生了聚集。
  2. Abstract : two important factors, the loss of the catalyst components and the change of the catalyst particle diameter, which lead to the decay of the catalyst for amination of fatty alcohols, were studied. the dimension analytic method is applied successfully to determine the relations among the components loss, the particle diame - ter and the times of the catalyst used in repeated experiments

    文摘:對引起脂肪醇胺化用催化劑失活的重要因素? ?組分流失及粒徑變化進行了研究，運用因次分析方法將催化劑的重復使用次數、組分流失及粒徑等因素進行了關聯，並取得了成功。
  3. Influence of particle diameter on pyrolysis property and kinetic parameter of oil shale

    顆粒粒度對油頁巖熱解特性和動力學參數的影響
  4. At the same time ， the fluid atomizing mathematical model of particle diameter and particle quantity were established ， and also the analogy calculation of particle diameter and particle quantity were carried out. the feasibility is verified that the fluid atomizing mathematical model can make prediction on the atomizing performance of pesticide. these will provide scientific foundation and deinsectication technology for the development of precise agriculture

    同時研究開發了粒徑與粒數的液體微粒化計算模型，並對噴霧機和煙霧機進行了粒徑與粒數的模擬計算，驗證了液體微粒化計算模型對農藥微粒化性能預測的可行性，為精準農業的發展提供了科學依據和防除技術。
  5. A series of near roundness cds nanoparticles with a particle diameter of 3 ~ 6nm have been prepared by controlling the concentration and proportion of reactants and adopting sodium hexametaphosphate as stabilizing agent. the studies demonstrate that these particles present obvious quantum size effect and an appropriate excess of cd2 + ion and hexametaphosphoric acid group polysnion are helpful to the dispersion and flame capability ' s improvement of particles. another series of near roundness monodisperse au nanoparticles with a diameter of 12. 3nm was prepared via sodium citric acid deoxidizing auric chloride acid

    利用六偏磷酸鈉作為穩定劑，通過控制反應物的濃度及比例，制備了粒徑為3 6nm 、呈近似球形的cds納米顆粒，光譜測試結果表明，顆粒具有明顯的量子尺寸效應，適當過量的cd ~ （ 2 + ）離子以及六偏磷酸根聚陰離子有助於顆粒的分散並提高其發光性能；採用檸檬酸鈉還原氯金酸，制備了接近球形、平均粒徑約為12 . 3nm的單分散體系au納米顆粒；採用wessling的前驅聚合物法獲得導電聚合物ppv前驅體。
  6. Carbon nanotube ( cnts ), as a kind of nano material, can produce special catalytic action to some materials because of its small particle diameter and large surface area

    碳納米管作為一種納米材料，由於小粒徑、大比表面積效應，可對某些物質的電化學行為產生特有的催化效應，常用於酶傳感器的構建。
  7. According to the experimental data of droplet size 、 particle spectrum range 、 droplet cone shape 、 flow rate 、 cover area and cover area rate which obtained through changing the pressure of power sprayer and the nozzle diameter in greenhouse ， this paper made comparative analysis on atomizing performance in same pressure and different nozzle type between same nozzle type and different pressure. the conclusion is that : the ejection rate and the droplet cone shape change with the variation of pressure and nozzle diameter ， average particle diameter decreases obviously and particle quantity increases obviously with the increase of pressure and decrease of nozzle diameter. these results will lay experimental foundation for precise spraying 、 low pollution and highly effective operation

    本文根據溫室內動力噴霧機壓力與噴嘴孔徑的變化影響霧滴大小、粒譜范圍、霧錐形狀、流量、覆蓋面積及覆蓋面積率的試驗數據，對相同壓力下不同噴嘴型號和相同噴嘴型號時壓力不同時的微粒化性能進行對比分析和研究，得到如下結論噴出量與霧錐形狀隨著壓力和噴嘴孔徑大小變化而變化；平均粒徑隨著壓力的增加和噴嘴孔徑的減小而明顯減小；粒數隨著壓力的增加和噴嘴孔徑的減小而明顯增多，為精噴量、低污染、高防效的防除作業奠定了實驗基礎。
  8. Pore parameters ( porosity and distribution of pore diameter ) of porous glass prepared by filler principle were measured and analyzed. they were mainly determined by the volume ratio and the particle diameter of the pore former in the green body. preparation and sintering process of the samples resulted in the difference between the porosity and the volume ratio of the pore former. they were also responsible for the deviation between the distribution of poer diameter and the particle diameter of pore former

    研究表明，利用填充法制備的多孔玻璃的孔參數（氣孔率、孔徑分佈）可進行設計與控制，多孔玻璃的氣孔率和孔徑分佈主要取決于成孔劑的體積比及其顆粒分佈，前者與後者之間的偏差取決于生坯制備及燒結過程。
  9. The ignition processes of two stages pc are studied. the influence of particle diameter distribution, parameters of two coal - air mixture, wall temperature of first ignition chamber is investigated

    數值模擬方法的建立，為感應加熱煤粉無油點火的研究開拓了研究思路，提高了研究進度，降低了研究成本。
  10. A mathematical model for the particles layering growth is developed based on the mechanism of layering growth and law of conservation of mass. a formula for calculating the particle diameter was also deduced

    依據顆粒層式成長機理，根據物質守恆原理建立了顆粒層式生長的數學模型，提出了粒徑長大的計算式。
  11. Abstract : on the basis of the general chromatography rate model, the effects of bi number, number, mass transfer pel number, particle diameter, injection and ratio of solute diameter and pore diameter on the chromatographic peak of taxol and the separation of taxol and cephalmonnine were simulated with computer. the essential factors affect on the chromatographic process of taxol and cephalmonnine were obtained and a more useful theory was provided to direct the chromatography separation of taxol and cephalmonnine

    文摘:根據建立的液相色譜普遍化速率模型，模擬了比渥數、數、傳質彼克列數、粒徑、進樣量和溶質分子直徑同多孔粒子孔徑比對紫杉醇色譜峰峰形和紫杉醇和三尖杉磷堿色譜分離度的影響，獲得了控制紫杉醇和三尖杉磷堿色譜過程的主要影響因素，從而為紫杉醇和三尖杉磷堿的色譜分離提供了更好的理論指導。
  12. Based on the experiment of dust removal in a granular layer at normal temperature and the analysis of the experimental results, the influence of filter particle diameter, layer thickness and filtration velocity on the dust removal efficiency was researched

    摘要在常溫下，採用固體顆粒層進行過濾除塵的實驗研究，並對實驗結果進行分析，探索了過濾介質粒徑、過濾層厚度和過濾速度對除塵效率和床層壓力差的影響。
  13. In this paper, based on the experi ment and research data of the injected water quality in lunnan oil field in many years, the actual situation of the injected water in lunnan oil field is analyzed and discussed and the chemical indices ( content of the iron, dissolved oxygen, sulfide, carbon dioxide and oil and corrosion rote ), the bacterial index, the phys ical indices ( content and particle diameter of the suspended sub stance ) and the compatibility of injected water with formation water, etc. are evaluated one by one

    文章立足於多年來輪南油田注入水水質的實驗研究數據，對輪南油田注入水現狀進行分析討論；對化學指標（鐵含量、溶解氧、硫化物含量、二氧化碳含量、含油量、腐蝕率） 、細菌指標、物理指標（懸浮物含量、懸浮物粒徑）和注入水與地層水配伍性等進行逐一評定。
  14. During making microcapsule by interfacial polymerization process, the effects of the agitation speed, dispersant dosage on the size and distribution of microcapsule particle diameter were investigated

    摘要研究了界面聚合法制備微膠囊阻燃劑時，分散劑用量、攪拌速度等因素對微膠囊粒徑大小及分佈的影響規律。
  15. At the same time, characteristic parameters such as particle diameter, concentration of bubble are provided in this paper

    同時給出了水墊塘內氣相（氣泡）的特徵參數如粒徑、濃度分佈等。
  16. The general characteristics of the grain - size distribution of different sedimentary facies, es pecially the variations of the parameters mz ( mean particle diameter ) and o ( standard deviation ) clearly show that the fluvio - lacustrine facies and palaeosols usually become finer in particles and worse in sorting than the aeolian sands

    該剖面不同沉積相粒度的一般分佈特徵尤其是粒度參數? mz 、的變化明顯表現出，河湖相或古土壤通常要較風成砂顆粒細化，分選相對較差。
  17. Pilot - scale experimental results showed that, comparing to conventional gravity filtration, the up - flow filtration has greater capacity in containing removed suspended solid and producing filtrate under the test conditions. coarse media with particle diameter ranging 0. 63 - 2. 00mm were used in order to apply relatively higher backwash rate of 21 l / ( m2. s ) for achieving better media clean - up after a filtration run. under the test conditions, the media thickness ranging 82 - 85 iron, water temperature ranging 6 - 27, and influx turbidity of 30 ntu, it achieved the results of the average filtration rate ranging 16 - 18 m / h, the average effluent turbidity of 1 ntu, and action cycle ranging 14 - 24h

    中試研究結果表明，粗石英砂濾料上向流過濾比傳統的重力流過濾具有更大的含污能力和產水量，為適用較高的反沖洗強度（ 21l （ m ~ 2 ? s ） ）以便濾料清洗更干凈，採用粒徑范圍為0 . 63 2 . 00mm的粗石英砂濾料，濾層厚82 85cm ，水溫6 27 ，進水濁度為30ntu左右等情況下，能獲得平均濾速為16 18m h 、平均濾后水濁度為1ntu左右、周期達14 24小時的好效果。
  18. 3. the numerical result indicated that particle distribution alone surface of inhibitor was enslaved to particle diameter. particle concentration changed from single - peak distribution to multi - peak distribution according to particle size increase

    （ 3 ）數值計算表明兩相流中粒徑對絕熱層表面粒子濃度分佈有很大的影響，且隨著粒徑的增大粒子濃度由單峰分佈變為多峰分佈。
  19. Average particle diameter

    平均粒子直徑
  20. ( 3 ) the most principal factors that influence the supersonic atomization process include the flow ratio of the gas - liquid metal ( gmr ) value, the flow of atomizing of gas and the range of the inverse vortex taper. the more of the value of three factors, the more advantage they are for the atomization and the more fine the powders are. ( 4 ) the produced powders are the best in efficient atomization efficiency, particle diameter, particle shape and dispersion when the solder alloy is zhl63a, atomizing medium is n2, the protrusion h = 6. 0mm, atomizing gas pressure p = 100mpa, over - heat temperature t = 167 ( t = 350 )

    研究結果表明： （ 1 ）超音速霧化器的氣體流場在導液管下端形成一個倒渦流錐，在二維空間上呈軸對稱的雙峰分佈，負壓形成於這個倒渦流錐內； （ 2 ）修正後的霧化氣體速度公式可以滿足超音速霧化的要求； （ 3 ）影響超音速霧化工藝最根本的因素有氣液質量流率比（ gmr ）的大小、霧化氣體流量和倒渦流錐范圍，三個因素的值越大，對形成細粉越有利； （ 4 ）在焊錫合金為zhl63a ，霧化介質微n _ 2 ，導液管突出高度取h = 6 . 0mm ，霧化氣體壓力取p = 1 . 0mpa ，合金過熱度取t = 167 （ t = 350 ）時，所制得的粉末在有效霧化率、顆粒球形度、粒度及其離散度三個方面綜合性能最好。
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