塵粒計數 的英文怎麼說

中文拼音 [chénlìjìshǔ]
塵粒計數 英文
dust counting
  • 塵 : 名詞1. （塵土） dust; dirt 2. （塵世） this world 3. [書面語] （蹤跡） trace; tracks 4. （姓氏） a surname
  • 粒 : Ⅰ名 （小圓珠形或小碎塊形物） small particles; grain; granule; pellet Ⅱ量詞（用於粒狀物）
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 計數 : count; tally; counting計數卡 numbered card
  1. Numerical simulation results indicate that, for low temperature dust particles, dust particles mainly exist in the area near the column center and their charge - number can be considered as a constant, while in the area where there are no dust particles, ion and electrons are in ambipolar diffusion ; for high temperature dust particles, both the distribution regions of dust particle and high ion density are expanded and dust charge - number is increasing with the distance from the center

    計算結果表明：當塵埃粒子的溫度較低時，塵埃粒子主要集中在圓柱形放電器的中心很小的區域，塵埃粒子攜帶的電荷幾乎是一個常數，受塵埃粒子空間電荷的影響，離子在該區域的密度最高。在遠離中心區域，離子和電子呈現雙及擴散特點；當塵埃粒子的溫度較高時，塵埃粒子分佈的區域和高離子密度區域擴大，塵埃粒子離放電器中心越遠，攜帶的負電荷越多。
  2. Verification regulation of dust particles counter

    塵埃粒子計數器試行檢定規程
  3. Methods for testing the performance of dust particle counter - particle concentration

    塵埃粒子計數器性能試驗方法顆粒數濃度
  4. Methods for testing the performance of dust particle counter - calibration for sizing particle

    塵埃粒子計數器性能試驗方法轉換靈敏度
  5. Influence of the light source in airborne laser particle counter on the flux of transducer

    塵埃粒子計數器中光源對傳感器光通量的影響分析
  6. To investigate the space / time distributions and occurrence and evolution of such events, the diffusion pattern over deserts, turbulent transfer features in sandstorm weather, the particle size distribution, mass concentration and its distribution, optic properties, chemical composition and physical factors responsible for the initiation of raising sands, we made integrative observation and sounding of sandstorms deep in the large - scale desert area, including tengri, badanjilin and maowusu, with the items consisting of micrometeorological measurement, 3d wind observation, data from kb - 120 and anderson samplers of mass concentrations of sands with their spectrum, the distribution of aerodynamic particle sizes from the aps3310a, retrieval of aerosols " optic depth from sunphotometer data, assay of the chemical composition by means of neutron activiation analysis ( naa ) and integrated study of all related factors for causing sandstorm to occur, based on the observations of all kinds

    利用所取資料，系統分析了不同強度沙塵天氣條件下沙塵氣溶膠質量濃度和質量濃度譜、粒子譜分佈、光學厚度、化學組分等特徵；綜合分析了影響沙塵起動的諸物理因子在沙塵起動中的作用；用沙塵輸送模式對一次沙塵暴天氣造成的泥雨過程的形成機制進行了模擬。歷史氣象資料統計分析表明，沙塵暴有其高發期（ 4 、 5月）和高發時段（ 14 - 20時） ， 14時到20時之間發生的沙塵暴約占沙塵暴總次數的66 。揚沙和沙塵暴天氣條件下，湍流動量通量和湍流感熱通量都是重要的湍流交換，沙塵暴發生前近地層的超絕熱不穩定對沙塵暴天氣有加強作用。
  7. Supply of transducers measuring electric current from less than an amp to several million amps. describes the theory and applications of these devices

    -從事水分活度測量儀，溫濕度傳感器，溫濕度巡測儀，塵埃粒子計數器的研發生產。
  8. The collection characteristics of charged particle on charged droplets are calculated by an numerical algorithm. with main consideration on the relative strength of particle inertia and electrostatic effect to enhance the efficiencies of particle collection

    摘要通過數值計算分析了帶電粉塵粒子在荷電霧滴上的捕集特性，主要考慮塵粒慣性和靜電效應對于提高粒子捕集效率的相對強弱。
  9. Then we also presented the simple way to solve the polydisperse powder concentration by calculate it as monodisperse powder, compared the measurement results which were got at different diameter, scattering angle and distribution

    然後本文還分析了將具有尺寸分佈塵粒的濃度測量按單一粒徑塵粒進行近似測量的計算情況，並比較了它們在不同粒度、不同測量角度、不同分佈參數情況下的差異。
  10. Standard practice for continuous sizing and counting of airborne particles in dust - controlled areas and clean rooms using instruments capable of detecting single sub - micrometre and larger particles

    使用能檢測單個亞測微計及較大粒子的儀器在控制塵埃區域及無菌區中連續測定空氣中懸浮粒子的大小及計數
  11. Abstract : the effects of the impurity particles on the structure of a 2d dusty plasma system. the mean square displacement, pair correlation function have been calculated to analyze the system ' s structure characteristics. the results show that both of the impurity particles ' content and mass or charge in the range of our caleulation will decelerate the system ' s phase transition process. here the impurity particles are smaller than the background dusty particles on mass and charge

    文摘:利用分子動力學模擬研究了雜質粒子對二維塵埃等離子體系統的影響.分別計算了平均平方位移，兩體相關函數來分析系統的機構特性.結果表明，在參數范圍內，雜質的含量以及雜質的質量和電荷的大小都會減慢系統的相變.雜質粒子在質量和電荷上都小於背景的塵埃粒子
  12. Abstract : attention is focused on the random mathematical model of particle dispersion in non - uniform turbulent fluid. according to the initial condition, the analysis formulas of point source, linear source and surface source are derived. numerical results are easily obtained by combining linear analytical method with nonlinear numerical method, which are compared with the experimental data

    文摘:研究粉塵顆粒隨機擴散數學模型，在非均勻湍流場中，根據初始條件，推導出點源，線源和面源的解析計算式，其數值計算結果與試驗吻合
  13. Attention is focused on the random mathematical model of particle dispersion in non - uniform turbulent fluid. according to the initial condition, the analysis formulas of point source, linear source and surface source are derived. numerical results are easily obtained by combining linear analytical method with nonlinear numerical method, which are compared with the experimental data

    研究粉塵顆粒隨機擴散數學模型，在非均勻湍流場中，根據初始條件，推導出點源，線源和面源的解析計算式，其數值計算結果與試驗吻合
分享友人
分享到 Line

分享到臉書