particle density 中文意思是什麼

particle density 解釋
粉粒密度
  • 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、...
  • density : n. 1. 稠密；濃厚。2. 【物理學】濃度；密度；比重。3. 愚鈍，昏庸。
  1. The incompressibility of the fluid is determined by introduction of a so - called particle density number

    流體的不可壓縮性是通過引人粒子數密度概念實現的。
  2. Determination of soil particle density in forest soil

    森林土壤土粒密度的測定
  3. In this technique, the particle density in the beam is very low ( typically 105 thickness ), so perturbations from collisions and inter - ionic fields are absent

    而且離子密度低（一般密度為10 ~ 5 cm ~ 3 ） ，因此不會出現自吸收、碰撞退激發以及離子間場效應等現象。
  4. A monte carlo algorithm was presented to model the relation between the scattering phenomenon, depolarization changes and sea water depth, it is discovered that the radius of scattering point and the degree of depolarization increase with increasing of the sea water depth. at last, a optical engineering software ( lighttools ) is introduced to simulate optical scattering in the deep sea water, and studys the corelation between scattering and relative refractive index, particle density and particle size in the sea water. the experiment results show that the intensity of scattering will increase evidently with the increasing of particle size, particle density and relative refractive index. the methods and results in the article provide the basic theory and experiment validation for improving performance of communication, detection and imaging under sea water

    本文以球形粒子的mie散射理論、 stokes矢量法以及mueller矩陣來研究海水的散射特性和散射中的退偏振度變化;通過montecarlo方法模擬藍綠激光在海水傳輸過程中的散射現象以及散射中的退偏度變化與海水深度的關系，發現隨著海水深度的增加，散射后的光斑半徑、退偏振度將逐漸增大。最後通過光學工程軟體（ lighttools ）對海水中的散射進行模擬實驗，研究散射與海水中粒子密度、粒子大小和相對折射率的關系。實驗結果表明，隨著粒子半徑、粒子密度和相對折射率的增加，散射的強度將顯著增加。
  5. Standard test method for saturated hydraulic conducitivity, water retention, porosity, particle density, and bulk density of putting green and sports turf root zones

    小型高爾夫球場綠呢和運動場草地區的飽和水滲透性水分保持孔隙率顆粒密度和體密度的標準試驗方法
  6. Soils : investigation and testing. determination of particle density. pycnometer method

    土壤.檢驗與試驗.土壤固體顆粒密度測定.水濃縮法
  7. In most region of space, the particle density is about 1 atom per cubic centimeter, however, in some region of space, the density is over 1000 atom cm

    在浩瀚的宇宙中，大部分地方的粒子密度約為每立方厘米有一顆原子，但宇宙中一些角落，粒子密度卻達1000原子立方厘米空氣的密度約為10
  8. Iso 11508 : 1998 soil quality - determination of particle density iso 11508 : 1998

    土壤質量.粒子密度的測定
  9. Solid biofuels - methods for the determination of particle density ; german version cen ts 15150 : 2005

    固體生物燃料.粒子密度的測定方法
  10. Tests for mechanical and physical properties of aggregates - determination of the particle density of filler - pyknometer method

    集料的機械和物理性能試驗.填充料粒子密度的測定.比色計法
  11. Powders are scattered in dispersant by the high - energy dispersing technology ; viscidity of dispersant is great, density of dispersant close particle density. polyvinyl alcohol is choosed as dispersant, and concentration of polyvinyl alcohol ranges from 3wt % to 7wt % ; the concentration of particle is 0. 4g / cm3. 4 the consolidation technology includes dry, the rate of heat - up and sintered

    分散採用高能量的分散技術；分散劑選擇粘度大，密度與懸浮粒子密度相近的分散劑；對于鈦粉、不銹鋼粉，其分散劑選擇聚乙烯醇，聚乙烯醇的濃度范圍在3wt ? 7wt ；在刷塗工藝條件下懸浮液的最佳濃度為0 . 4g / cm ~ 3 ，懸浮液濃度對多孔金屬膜的透氣性影響不大。
  12. The variation of the film composition can be monitored by using the method of spectrum analysis during the film deposition ( for the intensity of the persistent line is proportional to the particle density of the element in the vacuum chamber ). the measurement of the transmission spectrum of the film on a transparent substrate can be used to calculate the film parameters, such as refractive index, extinction coefficient and the thickness of the film. therefore, the combination of the two methods would be helpful to on line monitoring the film constituents and the optical paramenters in the preparation of thin films

    在制備薄膜的過程中，利用光譜分析的方法，以放電光譜特徵譜線強度的變化來反映相應物質成分的變化，以連續光譜光源發出的光透射過薄膜的透射率的變化，來反映薄膜的厚度、折射率、吸收系數等光學參數的變化，從而達到在制膜過程中，對薄膜的成分、厚度等參數進行在線監控的目的
  13. Testing methods for particle density of fine ceramic powder

    細陶瓷粉末顆粒密度的測試方法
  14. Soil quality - physical methods - determination of particle density

    土質.物理方法.顆粒密度的測定
  15. Tests for mechanical and physical properties of aggregates - part 7 : determination of the particle density of filler ; pycnometer method ; german version en 1097 - 7 : 1999

    集料的機械和物理性能的檢驗方法.第7部分:填料密度的
  16. Geotechnical investigation and testing - laboratory testing of soil - part 3 : determination of particle density, pycnometer method iso ts 17892 - 3 : 2004 ; german version cen iso ts 17892 - 3 : 2004

    土工調查和試驗.土壤的實驗室試驗.第3部分:比重瓶測
  17. Solid biofuels - methods for the determination of particle density

    固體生物燃料.顆粒密度的測定方法
  18. The study also shows that the increase of tio2 content lead to the ascent of particle density but had few effects on the pore structure, confirming that superfine tio2 had been successfully entrapped in the regenerated cellulose matrix

    研究表明，鈦白粉加量的增加會使基質的密度線性增加，但對基質的孔結構影響不大，說明超細顆粒已被有效地包埋進再生纖維素骨架之中。
  19. Soil quality. determination of particle density

    土壤質量.顆粒密度的測定
  20. Methods of test for particle density and water absorption of lightweight fine aggregates for structural concrete

    結構混凝土用輕細集料的吸水率和顆粒密度的試驗方法
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