reversal current 中文意思是什麼

reversal current 解釋
反向電流,反流,逆流
  • reversal : n. 1. 顛倒，倒轉，反轉，逆轉，反向；反復。2. 【法律】撤消。3. 【攝影】正負片之間的轉換。
  • current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
  1. Cause analysis of gas concentration reduction in face air current during reversal mine ventilation

    礦井反風時工作面風流中瓦斯濃度降低的原因分析
  2. 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。
  3. The article concludes the critical conditions to keep the balance of the current account and the capital account as well as the steady growth conditions to realize the reversal of the two accounts

    得出了保持經常項目收支平衡和國外凈資產平衡的臨界條件，以及實現經常項目收支逆轉和國外凈資產逆轉（順差? ?逆差，或逆差? ?順差）的經濟穩定增長條件。
  4. The reversal potential and the property that the current was rapidly blocked by external 1 mm bacl2 made sure that the current we recorded was carried by k +

    電流的反轉電位（ 60mw及其被胞外baci 。迅速抑制的特徵表明記錄到的電流為k 」電流。
  5. The tropical indian ocean, especially for the region north of 7, is strongly influenced by asia monsoon. in response to the seasonal reversal of wind, ocean currents also show obvious seasonal reversal with somali current most prominent

    熱帶印度洋，尤其是7 s以北的印度洋，受亞洲季風的顯著影響，與季風對應，海洋環流也有很明顯的季節變化，最明顯的是索馬里海流的季節轉向。
  6. This change in attitude, among other reasons, leads jencks to conclude that a substantial reversal of the current liberal policies is unlikely

    這個轉變以及詹克斯觀察到的其他現象，使他相信美國目前的移民政策不大可能大幅改變。
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