真空擴散 的英文怎麼說

中文拼音 [zhēnkōngkuòsǎn]
真空擴散 英文
vacuum diffusion
  • 真 : Ⅰ形容詞（真實） true; genuine; real Ⅱ副詞1 （的確; 實在） really; truly; indeed 2 （清楚確實） cl...
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 擴 : 動詞（擴大） expand; enlarge; extend
  • 散 : 散動詞1. （由聚集而分離） break up; disperse 2. （散布） distribute; disseminate; give out 3. （排除） dispel; let out
  • 真空 : [物理學] vacuum; empty space; vacuo
  1. Kt series diffusion pumps - product - longkou bite vacuum technology co., ltd

    Kt系列擴散泵機組-產品廊-口市比特真空技術有限公司
  2. The source is which is placed along with the polished substrate in an evacuated, sealed quartz ampoule.

    擴散源與拋光襯底一起置放在抽真空密封的石英管內。
  3. < uk > the source is which is placed along with the polished substrate in an evacuated, sealed quartz ampoule. < / uk >

    < uk >擴散源與拋光襯底一起置放在抽真空密封的石英管內。 < / uk >
  4. Closed ampoule vacuum diffusion

    閉管真空擴散
  5. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期，由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配， sio _ 2對其又有良好的掩蔽作用，早被選為npn硅平面器件的理想基區擴散源，但b在硅中的固溶度大（ 1000時達到5 10 ~ （ 20 ） ，擴散系數小， b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈，導致器件不能滿足高反壓的要求，隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝，前者會引起較大的基區偏差，雜質在硅內存在突變區域，導致放大系數分散嚴重，下降時間t _ f值較高，熱穩定性差；後者需要難度較大的真空封管技術，工藝重復性差，報廢率高，在擴散質量、生產效率諸方面均不能令人滿意。
  6. Development of new - type k - 800a high vacuum oil diffusion pump

    高真空油擴散泵的研製
  7. Vacuum coating machine, vacuum coating equipment, diffusion pump, vacuum plating factory, vacuum coating, ion injector, vacuum thermal treatment, vacuum thermal treatment equipment, vacuum equipment, thermal treatment equipment - longkou bite vacuum technology co., ltd

    真空鍍膜機，真空鍍膜設備，擴散泵，真空電鍍廠，真空鍍膜，離子注入機，真空熱處理，真空熱處理設備，真空設備，熱處理設備-口市比特真空技術有限公司
  8. Revieus of high vacuum diffusion pumps manufactured in former ussr

    前蘇聯高真空擴散泵統一系列工作的回顧
  9. These equipments are vacuum system which is made up of diffusion pump, pipes, water - cooling baffle and rotary vane pump ; the whole chamber, wall and water - cooling wall are made of stainless steel ; the lower part is equipped with cool water sleeve which can fast take out air to gain 10 - 4 or higher vacuum, therefore they are widely used in high - tech fields, such as the platting, electronic, metallurgy, chemical engineering, atomic energy, materials and medicine etc

    Kt系列擴散泵機組是由凸腔擴散泵管道水冷擋板機械泵等組成的高真空系統，整個泵腔泵壁及水冷壁全部由不銹鋼作成，下部配有降溫用急冷水套，抽氣速度快，極限真空高，它可使被抽容器獲得10 - 4或更高的高真空，因此廣泛適用於鍍膜裝飾電子冶金化工原子能材料醫藥等等各種高新技術領域。
  10. Not only does it study the plasma characteristics of the arcing and after - arcing between contacts, but also its diffusion to outside of the contacts and its effect on the arc shield. for the first time, it proves the non - stability of the plasma diffusion of after - arcing by experiments

    同時，分析了燃弧和弧后觸頭間隙等離子體的特性，探討了它向觸頭間隙外的擴散及對屏蔽罩的作用效果，用實驗證明真空滅弧室弧后殘余等離子體消散的不穩定性。
  11. Vacuum technology ; acceptance specifications for diffusions pumps and vapour jet vacuum pumps for vapour pressures of the pump fluid 1 mbar

    真空技術.流體蒸氣壓低於1mbar的擴散泵和蒸氣噴射真
  12. Using masson pine ( pinus massoniaha ) as specimen, experiments based on the research of water diffusion coefficient and floating coefficient have been carried out to reveal the fundamental principle of absorbed water movement in wood drying under vacuum - floating pressure

    摘要該文以馬尾松為試驗材料，通過對水分擴散系數和浮壓系數的試驗研究，總結出木材在真空浮壓乾燥過程中吸著水遷移的基本規律。
  13. Vacuum diffusion welding of refractory steel to heat resistant alloy was investigated in this paper. the effect of welding parameters on the deformation ratio of joints was examined

    針對耐熱合金與耐熱鋼的真空感應擴散焊，研究了擴散焊連接工藝參數對接頭變形率的影響、接頭變形率與接頭性能的關系以及不同接頭變形率的微觀形態。
  14. The penetrability of grade composite plate made of this composite was superior to aluminum plate

    真空熱壓擴散燒結的sicp / a1剃度復合材料的抗穿透能力明顯高於金屬鋁板。
  15. In succession, tini thin film is deposited on single - crystal silicon substrate using optimized parameters utilizing sputtering, and its transformation temperature ( a * ) is 72 ? indicated by dsc curve after being annealed in an ultra - high vacuum ( uhv ) chamber. in addition, the composition of the silicon - based tini film was analyzed by an energy dispersive x - ray spectroscopy ( eds ), and the ti content in the film is approximately 51at %

    按照改進的工藝參數，在單晶硅襯底上濺射-淀積了tini薄膜，並進行了超高真空退火， dsc法測得其馬氏體逆相變峰值溫度為72 ，利用能譜分析（ eds ）技術測得其ti含量約為51at ，通過對非晶tini薄膜與單晶硅襯底之間的界面進行eds及x射線衍射（ xrd ）分析，發現在用大功率（ 2000w ）直流磁控濺射法制備tini薄膜過程中，存在ti 、 ni與si的雙向擴散，發生了界面反應，並有三元化合物ni _ 3ti _ 2si生成。
  16. In the interdiffused layer the diffused length of nb - 1zr alloy elements is longer than that of stainless steel elements, the diffused length of ni is the longest. there are a mass of needle shape precipitated phases in the interdiffused layers formed by 1300 annealing, which are determined to be a metastable cph - ( nb, ni ) by sadp method

    通過對真空退火形成的互擴散層的金相和成分分佈分析可以發現，不銹鋼元素中ni元素在nb合金中的擴散速度最快， fe 、 cr元素次之；而nb元素向不銹鋼中的擴散距離要比不銹鋼元素向nb合金中的擴散要深得多。
  17. Up - to - date change of diffusion pumps : an outlook after visiting the 7th international vacuum products show

    從第七屆國際真空展看擴散泵產品的變化
  18. Booster oil diffusion pump

    增壓油擴散真空泵
  19. The design of yarn is a rather important tache, it can easy get the yarn ' s math model according to its geometrical structure, the paper has bright forward a quick illumination - rendering method that based on hsl / rgb, the advantage of this rendering method is its speediness compared with the traditional rendering method such as phong - rendering method. random diffuse algorithm can add the effect of 3d of the yarn

    根據紗線的結構建立相應的數學模型，本文提出一種基於hsl rgb顏色空間轉換的快速光照繪制方法，該方法與傳統的光照模型如phong光照模型相比可以在很短的時間內對紗線進行光照效果的處理，加上隨機擴散演算法，使得繪制出的紗線更具有真實感。
  20. Vacuum diffusion welding

    真空擴散焊
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