梯級式軸 的英文怎麼說

中文拼音 [shìzhóu]
梯級式軸 英文
ste ed shaft
  • : Ⅰ名詞1 (梯子; 樓梯) ladder; stairs; steps; staircase 2 (姓氏) a surname Ⅱ形容詞(形狀像樓梯的...
  • : Ⅰ名詞1 (等級) level; rank; grade 2 (年級) any of the yearly divisions of a school course; gra...
  • : 名詞1 (樣式) type; style 2 (格式) pattern; form 3 (儀式; 典禮) ceremony; ritual 4 (自然科...
  • : 軸Ⅰ名詞1. (圓柱形的零件) axle; shaft 2. (對稱部分的直線) axis 3. (圓柱形的纏繞器物) roller; spool Ⅱ量詞(用於纏在軸上的線以及裝裱帶軸子的字畫)
  1. On the point of system, this paper mainly studies the optimal distribution of load in the machines of irrigation and drainage pumping station, the mathematical model and it ' s solution are studied among the machines in pumping station with two types of axial pump : full regulation or semi - regulation. this paper also studies the problems of the optimal day - operation of pumping station and the economical operation of grading pumping station. at the end, jiangdu pumping station is taken as a practical example to show the theory on economical operation of irrigation and drainage pumping station

    本文從系統的觀點出發,以排灌站機組間負荷的優化分配研究為主,分別對全調節和半調節流泵兩種泵型的排灌站機組間負荷優化分配的數學模型及其求解方法進行了研究,同時對排灌站最優日運行方泵站的經濟運行也進行了初步探索,最後以江都排灌站為例,建立了排灌站經濟運行的實用模型。
  2. A full mathematical model of optimal flow pattern design withengineering constraints was put forward, based on modern optimal control theory. an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine. according to integral optimization of turbine stages, a full physical model and mathematical expression were put forward for proposition of optimal flow pattern, including all performance parameters in turbine stages. this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state, fixed terminal condition and constraints for part of state terminal variables. the program was also worked out according penalty function method and conjugate gradient method. the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function

    把近代最優控制論方法引入流透平葉片的設計,在優化的流透平子午通道內,建立包括透平內所有性能參量的最優流型命題的完整的物理模型及其數學表達,並歸化為一個在給定初始狀態、自變量終端固定、部分狀態變量終端受有約束的條件下,使的某一性能指標(如的功率)達到最優的最優控制問題,應用「代價函數法」及「共軛度法」編制計算程序,計算得到符合給定約束條件、並使目標函數取極值的最優環量分佈,結果是令人滿意的。
  3. Again, the probabilities of vehicle axle load and temperature gradient were studied ; the design method of cement concrete pavements considering ultimate bearing capacity was proposed, and the typical pavement structures meeting the levels of axle load limits were developed also

    再次,研究了車輛載與溫度度的概率特徵,提出了考慮極限承載力的混凝土路面設計方法,並擬定了滿足各極限載的典型混凝土路面結構形
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