離子密度 的英文怎麼說

中文拼音 [lízimìdù]
離子密度 英文
ion concentration
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 密 : Ⅰ名詞1 （秘密） secret 2 [紡織] （密度） density 3 （姓氏） a surname Ⅱ形容詞1 （距離近; 空隙小）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 離子 : [物理學] ion
  1. The ability of the ionosphere to reflect these waves is dependent upon normal variations in the electron density at different levels.

    電離層反射電波的能力取決于不同高度上電子密度的正常差別。
  2. In this paper, we focus on the following three topics : ( i ) density distribution of dusty plasma in the low - pressure collisionless positive column the radial density distributions of electron, ion and dust particle in the low - pressure collisionless positive column are investigated with a fluid theory and a self - consistent dust - charging model

    本文著重以下三個方面的研究： （ ）低氣壓無碰撞輝光放電正柱區塵埃等離子體密度徑向分佈本文採用流體模型和自洽的塵埃充電模型，研究了低氣壓無碰撞輝光放電正柱區的電子密度、離子密度和塵埃粒子密度的徑向分佈。
  3. The laser damage threshold of the ybyp _ xv _ ( 1 - x ) o _ 4determined by nd : yag laser, which showed a decreasing tendency with the increase of the dopant concentration

    利用nd : yag激光器測試晶體的激光損傷閾值，隨著摻雜離子濃度的增大，激光損傷光功率密度呈減小趨勢。
  4. 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。
  5. We obtained holographic interferogram, from which we got the space distribution of plasma electron density by abel inversion

    由全息干涉條紋圖樣求解等離子體電子密度空間分佈要用到abel變換。
  6. Electron density is one of basic parameters of laser - produced plasma, so it has a important role in diagnosis of laser - produced plasma

    電子密度是激光等離子體最重要的基本參數之一，因此在激光等離子體診斷中佔有重要位置。
  7. The propagules of b. gymnorrhiza and a. corniculatum undergo some growth before becoming detached from the parent plant. they accumulated large amounts of ions during the development while the level of ion concentrations are consistently lower in their embryos compared to leaves of parent plant. before detachment, the growth of hypocotyls were reduced, the water content declined, while the osmotic potential was approaching to or more negative than that of the solution on which their parent plant vegetating

    另一方面維持較大比例的有機滲透調節劑，控制細胞液中鹽離子的水平以減少代謝毒害；木欖成熟胚軸的密度接近或低於生境中海水的密度，適于隨水漂浮和傳播；胚軸內離子濃度呈下降趨勢，但最終以達到和母樹生境中的離子濃度水平相一致為目標。
  8. Linear ion density

    線離子密度
  9. 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。
  10. Through two - fluid and two - time - scale approximation, the dominating equations, which show the non - linear coupling between high frequency modulational field and the density disturbance of electrons and ions, are obtained

    這組方程描述了高頻調制場和電子、離子密度低頻擾動之間的非線性耦合。
  11. This paper studies the application of inductively coupled plasma ( icp ) technology to the etching compound semiconductor insb - in film. by means of single probe and double probe, the ion density and electron temperature of chamber ( 30mm and 50mm in height respectively ) under varied process condition were diagnosed. the spatial distribution of the axial position of the two parameters and the varied curve that the two parameters varies with the power and air pressure are obtained

    利用單探針和雙探針診斷30mm高反應室和50mm高反應室在各種工藝條件下的離子密度和電子溫度，得到這兩個參數在反應室軸向位置的空間分佈、隨功率和氣壓的變化曲線、頂蓋接地和反應室體積對它們的影響，結果表明離子密度為10 ~ 8 10 ~ （ 10 ） cm ~ （ - 3 ） ，電子溫度在4 10ev之間；當頂蓋接地時，該處的等離子體密度明顯大於不接地；在同樣條件下， 50mm高反應室內的離子密度明顯大於30mm高反應室。
  12. This paper mainly study on the technics of preparing nano - si3n4 and icpecvd. seeking for the proper parameter and technics, crystallization of nano - si3n4 powder with muffle furnace, probe the new effective way of improving the properties of nano - si3n4 powder the ion density in the reaction chamber was diagnosed by a langmuir probe. the rules were obtained under different air pressure, different radio frequency power and different position which the ion density changes about from 1010cm - 3 to 1010cm - 3 decreasing as the pressure increases and increasing as the power decreases

    利用朗繆爾探針診斷了反應室內等離子體參數，得到不同位置、不同功率和不同氣壓下等離子體密度的變化規律，結果表明離子密度為10 ~ 8 10 ~ （ 10 ） cm ~ （ - 3 ） ，等離子體密度隨著功率的增大而增大，隨著氣壓的升高而減小，由於離子鞘層的存在，在一定條件下提供了局部等離子體密度穩定的區域。
  13. Then these separated interferograms can be recorded by ccd camera the experiments with the multi - frame interferometer was carried out on a small gas - puff z - pinch device with 23 kv working voltage and 210 ka peak current and about 2 risetime, and good results were obtained

    該套干涉儀在小型噴氣式z箍縮裝置上進行了實驗， z裝置的工作電壓23kv 、峰值電流210ka 、電流上升時間約2 。根據干涉圖條紋的移動數，可以計算出等離子體的電子密度和運動速度。
  14. According to the fringe shift of the interferograms, electron density and implosion velocity can be obtained. in the early period of plasma imploding ， the averaged electron density is,

    在箍縮早期平均電子密度為，運動速度為；聚焦附近，等離子體的平均電子密度約為，運動速度，最小箍縮半徑0 . 49mm ；崩潰階段，等離子體的崩潰速度為。
  15. The absorption spectra indicate that the adsorption of dithiooxamide on the silver nanoparticles results in a red - shift in the spr band, mainly caused by the changes in the microenvironment of the metal nanoparticles and charge density alteration due to the charge transfer between the molecules and metal particles

    吸收光譜結果表明銀納米粒子表面吸附二硫代乙二酰胺分子可導致金屬粒子的表面等離子體共振吸收紅移，主要與金屬粒子的微環境改變以及吸附分子與金屬間電荷轉移而導致的金屬粒子內部電子密度改變有關。
  16. The technology renovation project " application of frequency sweep microwave interferometer method to the measurement of electron densities in the wake of hypervelocity projectiles " is the research work of this thesis

    具體要求是將所研製的掃頻式微波干涉儀應用於某氣動物理靶中對等離子體尾跡進行電子密度的測量。
  17. Numerical simulations were done to show the distortion of the wavefront and the interference pattern under several kinds of typical plasma density distributions. the ray path in plasma was calculated by the numerical solution of the vector equation of light ray, when the plasma density was closing to the critical electron density of the laser frequency. through the simulations, the factors that influence the measurement were found out under different density distributions and shapes of plasma

    在此基礎上，採用數值模擬的方法，計算了在幾種典型的等離子體密度分佈下，激光波面的變化和產生的干涉圖樣；並用光線矢量微分方程的數值解法計算了當等離子體密度接近光頻臨界電子密度時，光線在等離子體中的傳播路徑，從中掌握了在不同的等離子體密度和形狀下，進行干涉測量所應估計到的因素。
  18. To make pic ( particl - in - cell ) simulations. to set up models of guns and magnetic field and simulate them in the vacuum and plasma, respectively. we found that plasma held back part of space charge effects and improved trajectory of electrons. but beam would oscillate and became instable as accretion of plasma density. by simulating again and again, we draw a conclusion magic could n ' t work when plasma density was more by far than beam electron density. at last a four - stage depressed collector was simulated

    建立電子槍和聚焦系統模擬模型，分別在真空和填充等離子體條件下進行模擬。發現填充等離子體能補償部分空間電荷效應，改善電子束包絡軌跡，提高電子的流通率，但是隨著等離子體密度的增大，束電子會出現振蕩不穩定性，遺憾的是通過反復多次模擬發現本文所用粒子模擬的代表性軟體magic無法用於模擬等離子體密度遠高於束電子密度的情況。
  19. Composition of cobalt - tungsten deposit was changed with the change of tungsten concentration and current density in plating solution

    實驗表明，隨著鍍液中鎢離子濃度的不同和電流密度的改變，鈷鎢合金鍍層組成不同。
  20. The output spot - size of our non - flowing tea co2 laser is quite large, only slightly smaller than the section of the excited media, this agrees with the calculated spatial distributions of the initial electron density for pre - ionization well

    由我們的非流動型teaco _ 2激光器獲得的輸出光斑相當大，僅比激活區截面略小，這與理論計算的預電離初始電子密度空間分佈規律有較好的一致性。
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