電子發射 的英文怎麼說

中文拼音 [diànzifāshè]
電子發射 英文
electron ejection
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 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...
  • 發 : 名詞（頭發） hair
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 電子 : [物理學] [電學] electron
  1. The liberation of electrons from a hot wire is called thermionic emission.

    電子從熱燈絲逸出，叫做熱電子發射。
  2. New york ( reuters health ), feb 15 - in infants with congenital hyperinsulinism, positron - emission tomography ( pet ) scans can accurately differentiate between focal and diffuse disease, and pinpoint focal lesions, according to a study published in the february issue of the journal of pediatrics

    紐約（路透社健康專欄） ， 2 . 15 - - -根據發表在兒科雜志二月刊上的一項研究，對于有先天性高胰島素血癥的嬰兒，正電子發射斷層掃描（ pet ）可以準確的區分病灶和彌散性疾病，並且精確地找到局灶性損害位置。
  3. Epl electron projection lithography

    電子發射平版印刷
  4. Positron emission tomography is a new generation image test equipment, which works through functional metaboly of tissue to help doctors to make a diagnosis. pet is of great importance to early diagnosis of tumors and the test of pathological changes of organs

    Pet全稱為正電子發射斷層掃描成像系統，是通過組織的功能代謝來診斷疾病的新一代影像檢查設備，對于腫瘤的早期診斷及各器官病變的檢查均有重要意義。
  5. This project which is based on the demand of increasing the electron tube ’ s qualities totally and reducing the manufacture cost has done a large amount of investigative work as follows to improve and perfect the technologies for the important part of electron tube manufacture ? the grid surface processing : on the surface processing of the molybdenum grid, the primary purpose is to reduce thermionic emission and secondary electronic emission of the grid. by the constantly experiment and grabbling the different technology routes, we have successfully developed these new technologies on the tac and zrc electrophoresis and electroplating platinum black of the grid, and made its surface cladding quality very stable and reliable

    本課題是基於整體提高電子管的質量和降低生產成本的要求，對電子管生產中的重要部分? ?柵極的表面處理技術進行改進和完善，主要在以下方面進行了深入研究:在鉬柵極表面處理方面，主要為實現降低柵極的熱電子發射和二次電子發射，通過不同工藝路線的不斷試驗和摸索，成功開發出柵極電泳tac 、 zrc和電鍍鉑黑的新工藝，使柵極的塗覆質量穩定可靠。
  6. Positron emission tomograph, pet

    方法利用正電子發射斷層攝影技術
  7. In a radio tube there is a source of electrons.

    在電子管中，有一個電子發射源。
  8. The secondary electron effect is incorporated into the simulation, which are divided into true secondary and reflected primary electrons

    分析了次級電子發射的特性，在模擬中將次級電子近似分為真實次級電子和反射的原電子分別處理。
  9. In this paper based on the theory of the low energy electrons, the movement of the irons in the counter is analyzed. the theories of sputtering and secondary electron emission are discussed respectively. the irons " action and effect on the counter are putted forward

    本文從低能電子發射機理入手，分析了計數管內部離子運動情況，討論了離子濺射和二次電子發射，提出了離子與計數管內壁相互作用及其對計數管的影響，給出了計數管內壁表面處理模擬圖。
  10. The empirical formula in the process of the secondary emission is analyzed ; the stabilization condition of vacuum surface flashover is deduced. the physics image of the vacuum surface flashover is described with the seea theory

    本文分析了二次電子發射過程的經驗公式，推導了真空表面閃絡的穩定條件，以seea理論的觀點描述了真空表面閃絡發生的物理圖象。
  11. The dust charging associated with the electron beams including the secondary emission of dust can dominate the dust surface potential in the close cathode region. in this case, dust of the same size can levitate at two different positions in the cathode

    另外還發現：在考慮極板有強電子束發射和塵埃粒子本身的二次電子發射時，同一大小的塵埃粒子能夠懸浮在鞘層中兩個不同的位置。
  12. Special tool motivated by gas, liquid or pipeline conveyance medium to cleanup the pipeline, which can carryover the electronic launcher instrument and the ground tracking device

    由氣體、液體或管道輸送介質推動，用以清理管道的專用工具。它可以攜帶電子發射裝置與地面跟蹤儀器。
  13. A new model for the growth stage of surface flashover has been developed according to the experimental results, which is based on the solid band theory. it is suggested that the electron multiplication could be attributed to two processes : one is the secondary electron emission avalanche caused by collisional ionization, the other is the micro - discharge caused by the trap centers of insulator. the trap cente

    電子倍增的過程與材料的表面態直接相關，材料微觀結構的變化和材料的表面處理都能夠導致材料表面態的變化，引起材料的表面二次電子發射系數以及材料中陷階密度和分佈的改變，從而影響了電子倍增的過程，並進一步改變或影響了沿面閃絡的發展過程。
  14. Pet positron emission tomography

    陽電子發射斷層攝影術
  15. Positron emission tomography

    正電子發射斷層照相術
  16. The role of delayed imaging of positron emission tomography on differentiation of abdominal and pelvic lesions

    正電子發射斷層延遲顯像在腹部和盆腔的應用
  17. Influence of laser incidence angle on hot electrons generated in the interaction of ultrashort intense laser pulses with foil target

    激光入射角對靶面方向超熱電子發射的影響
  18. These emission peaks are located in the directions of the specular reflection of laser, the target normal and the back - reflection of laser respectively

    這些超熱電子發射峰分別沿著激光反射方向、靶法線方向和激光背反射方向。
  19. Standard practice for definition and determination of thermionic constants of electron emitters

    電子發射極的熱離子常數定義和測定的標準實施規范
  20. Fabrication of 10 inch field assistant hot - electron emission display

    10英寸場助熱電子發射顯示屏的製作
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