reversible unit 中文意思是什麼

reversible unit 解釋
可逆轉的印刷裝置
  • reversible : adj 1 可轉換[掉換]的；可翻轉的，正反[表裡]兩用的；可逆的。2 可取消的，可廢棄的。n （正反一樣的）...
  • unit : n 1 個體，一個，一人。2 （計值、組織、機構）單位；單元；小組，分部；【軍事】部隊；分隊。3 【機械...
  1. In this dissertation, we firstly prove that any dirichlet problem is indeed equal to a voltages problem of networks. we give five solutions to dirichlet problem in two dimensions ; among these five solutions, we prove that the iteration solution and the solution of relaxations are exponential convergence, then we estimate their respective convergence rates ; secondly, we discuss random walks on general networks, prove that there is an one to one correspondence between networks and reversible ergodic markov chains ; thirdly, we give probabilistic interpretation of voltages for general networks : when a unit voltage is applied between a and b, making va = 1 and vb = 0, the voltage vx at any point x represents the probability that a walker starting from x will return to a before reaching b ; furthermore, we study the relationship between effective resistance and escape probability : starting at a, the probability that the walk reaches b before returning to a is the ratio of the effective conductance and the total conductance

    本文證明了任何邊值的dirichlet問題都可轉化為求解電路電壓的問題：給出了計算平面格點上dirichlet問題的5種方法：證明了迭代法和松馳法都是指數收斂的，並分別給出收斂速度的估計；討論了一般電路上的隨機徘徊，驗證了電路與可逆的遍歷markov鏈是一一對應的；給出了電路電壓的概率解釋：當把1伏電壓加於a ， b兩端，使得v _ a = 1 ， v _ b = 0時，則x點的電壓v _ x表示對應的markov鏈中，從x出發，到達b之前到達a的概率；進一步地，給出了逃離概率與有效電阻之間的關系：從a出發，在到達b之前到達a的概率為有效傳導率與通過a的總傳導率之比。
  2. Our research group proposed a model for osmotic - regulation in guard cell vacuoles ( gcv ), which is depended on reversible disaggregation of particles and modulated by ph in gcv. published evidences for this model show a great increase of the distribution density going with obvious decrease in volume of the particles in gcv of open stomata in comparison with that of the stomata before open ( closed ). during stomatal opening there is an acidification in gcv of about - 0. 5 ph unit

    作者所在試驗室提出了保衛細胞液泡內顆粒狀物質在ph介導下可逆解聚的滲透調節模型，並已發表了支持該模型的氣孔開放過程中的實驗證據（氣孔開放前後顆粒狀物的分佈密度極大增加；氣孔開放過程伴隨液泡ph的下降[約0 . 5單位] ） 。
  3. The shahe pumped - storage power station with two 50mw reversible units has been in good conditions on general since it was put into operation, but there still were some defects, such as the failure of unit ' s contemporaneous device, the insufficient cooling water discharge and pressure, and the failure of static frequency converter and excitation overcurrent

    摘要沙河抽水蓄能電站兩臺50mw可逆式機組自投運以來，總體情況良好，但是也出現了一些缺陷，如機組同期裝置故障，機組冷卻水流量或壓力不足，靜止變頻器故障，勵磁過電流故障等。
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