electron-negative 中文意思是什麼

electron-negative 解釋
負電的
  • electron : n. 【物理學】電子。 the electron beam 電子束。 the electron theory 電子（學）說。
  • negative : adj 1 否定的 否認的；拒絕的 （opp affirmative）； 反對的 反面的；消極的。2 （opp positive） 【電...
  1. The electron, for example, has negative charge, whilst its antiparticle, called the positron, has positive charge

    舉例說明，比如電子帶負電荷，同時，它的反粒子被稱作正電子?帶有正電荷。
  2. Each electron bears a single negative charge.

    每一個電子都帶有一個負電荷。
  3. An electron with a negative charge, as contrasted with a positron

    電子帶有負電荷，與正電荷相反的電子
  4. The combination of negative electron affinity ( nea ) photocathode and micro channel plate ( mcp ) brings the iii image intensifier. because of its high performance, the iii image intensifier has been developed rapidly and used widely in the short several decades after it had been found

    負電子親和勢（ nea ）光電陰極和微通道板（ mcp ）的結合產生了三代像增強器，由於這類像增強器具有優良性能，在發現后的短短數十年中獲得了迅猛發展和廣泛應用。
  5. This bond is a weak electrostatic force of attraction between the pro ton of a hydrogen atom and the electron cloud of a neighboring electro - negative atom

    氫鍵是氫原子核及其相鄰的負電荷原子的電子云之間的一種微弱的靜電吸引力。
  6. When the flue gas and dust past through electrical fields, they caused impact with positive and negative ion and electron between electrical electrodes to charge electric. the charged particles move and are accumulated to difficult electrical electrode due to effect of electric field force. through rapping method, the dust leaves electric electrodes and drop into the collection hopper, and the remove the dust by transportation system

    是一種煙氣凈化設備，它的工作原理是：煙氣中灰塵塵粒通過高壓靜電場時，與電極間的正負離子和電子發生碰撞而荷電或在離子擴散運動中荷電，帶上電子和離子的塵粒在電場力的作用下向異性電極運動並積附在異性電極上，通過振打等方式使電極上的灰塵落入收集灰斗中，使通過電除塵器的煙氣得到凈化，達到保護大氣，保護環境的目的。
  7. Prof. of electronics : kiss is the mutual attraction between the positive electron and the negative electron

    電子學教授：接吻是正電子和負電子的相互吸引。
  8. Based on the energy band characteristics of ordinary negative electron affinity emitter gaas, the design of lengthening the diffusion lengths of negative electron affinity emitter gaas was presented, and the special negative electron affinity emitter gaas was designed

    摘要根據通常負電子親和勢二次電子發射材料砷化鎵的能級特點，提出延長負電子親和勢二次電子發射材料砷化鎵的逸出深度的理論設計，設計出了特殊的負電子親和勢二次電子發射材料砷化鎵。
  9. The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material

    本文的主要工作和結論如下：在人工氣候室內，根據不同覆冰絕緣子正、負極性下的閃絡試驗結果，得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓；正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應；覆冰較少時，合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法，對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明，直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低，且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。
  10. We have investigated transport properties of electrons in magnetic quantum structures under an applied constant electric field. the transmission coefficient and current density have been calculated for electron tunneling through structures consisting of identical magnetic barriers and magnetic wells and structures consisting of unidentical magnetic barriers and magnetic wells. it is shown that the transmission coefficient of electrons in a wider nonresonance energy region is enhanced under an applied electric field. the resonance is suppressed for electron tunneling through double - barrier magnetic ( dbm ) structures arranged with identical magnetic barriers and magnetic wells. incomplete resonance at zero bias is changed to complete resonance at proper bias for electron tunneling through dbm structures arranged with different magnetic barriers and magnetic wells. the results also indicate that there exist negative conductivity and noticeable size effect in dbm structures

    對磁量子結構中電子在外加恆定電場下的輸運性質進行了研究.分別計算了電子隧穿相同磁壘磁阱和不同磁壘磁阱構成的兩種磁量子結構的傳輸概率和電流密度.計算結果表明，在相當寬廣的非共振電子入射能區，外加電場下電子的傳輸概率比無電場時增加.對于電子隧穿相同磁壘磁阱構成的雙磁壘結構，共振減弱；對于電子隧穿不同磁壘磁阱構成的雙磁壘結構，無電場作用時的非完全共振在適當的偏置電壓下轉化為完全共振，這時的電子可實現理想的共振隧穿.研究同時表明，磁量子結構中存在著顯著的量子尺寸效應和負微分電導
  11. A proton has a positive charge and an electron a negative charge, but a neutron has neither

    質子帶正電，電子帶負電，而中子既不帶正電，也不帶負電。
  12. The proton carries a positive charge and the electron carries a negative charge, but the neutron carries neither

    質子帶正電荷，電子帶負電荷，中子兩種電荷都不帶。
  13. Electron cyclotron current drive in negative central magnetic shear mode

    中心負剪切模式中的電子迴旋波電流驅動
  14. Numerical simulation of electron cyclotron current drive in negative central magnetic shear mode

    中心負剪切模式中的電子迴旋波電流驅動數值模擬
  15. Several influence factors to result plasma drift in hainan were analyzed. in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained, the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm, that a layer with very strong electron density and density grad was found during the recovery phase of the storm, its horizontal scale is beyond 100km and temporal scale is about 2 hours, this phenomena repeated 3 times continuously. a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found

    本文較為系統地給出了海南地區電離層的參數變化特徵，特別是得到了一些暴時與以往不同的季節特性；第一次給出了海南地區的電離層等離子體漂移特徵，發現等離子體漂移暴時擾動在三個方向上有內在的聯系，得到了電場變化曲線；研究結果還表明海南電離層的半厚指數和形狀參數等與國際參考電離層iri - 2001存在很大差別；通過對強磁擾動事件期間的參數變化特性分析發現，在磁暴恢復相期間海南地區電離層底部存在一個電子密度非常大的高密度區，高密度區底部電子密度梯度隨高度急劇增加，該區域的水平尺度可達100公里以上時間尺度約為2小時，連續出現過三次，這是一個在海南從來未發現的新現象；研究還發現了暴時東亞地區電離層擾動會出現高低緯負相而中緯正相的現象。
  16. They are strong reducing agents ( very negative redox potentials ) and function as electron carriers, for example in photosynthesis and nitrogen fixation

    它們是強的還原性物質（很低的氧化還原電位）以及作為電子載體起作用，如在光合作用和固氮作用中。
  17. Electron emission characteristics have been investigated for amorphous diamond films with low or even negative electron affinity

    摘要利用陰極電弧法分別在矽基板及鍍有一層釤金屬的矽基板上沉積非晶鉆石。
  18. Between these two tiny particles, the proton and the electron, there is a powerful attraction that is always present between negative and positive electric charges

    在質子和電子這兩個微粒之間有一個很大的吸引力，而這個吸引力總是存在於正、負電荷之間。
  19. If the amount of positive and negative charges is varied, the electron stream can be made to bend up or down in varying amounts

    如果正負電荷的量發生變化，電子流上下彎曲的程度也隨之變化。
  20. The virus could multifly on the mdck cells. and induce regular cytopathic effect ( cpe ). observed by negative staining electron microscope, the virus could be seen with coroniform spike. in the ultrathin sections, the viruses were found to multiply and induce inclusion body forming in the cytoplasm

    本研究從某動物園兩只死亡大熊貓的肝、脾等臟器分離病毒，經mdck細胞適應培養，獲得一株病毒（命名為dxmv ） ，在該細胞上可形成有規律的病變。
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