addition of variables 中文意思是什麼
addition of variables
解釋
變量相加-
The main contents are as follows : 1. the theoretical frameworks of the local fiscal expenditure structures are the core contents of the thesis, and its main points are as follows : ( 1 ) die local fiscal expenditure structures are the interrelationship between the different factors under the economic and finance systems ; ( 2 ) the essence of the optimization of the local fiscal expenditure structures is mat the different factors among the local fiscal expenditure structures are suited to the common social needs and the distribution of mem are reasonable and appropriate ; ( 3 ) the efficiency of the local fiscal expenditures are determined by the reasonability of themselves and its effect on the economic variables ; ( 4 ) in addition to adjust the structures, the efficient expenditure management mechanism is needed in order to maintain the optimization processes
通過研究指明： （ 1 ）地方財政支出結構是指在一定的經濟體制和財政體制下，在地方財政資源的分配過程中，地方財政支出的諸要素相互聯系、相互作用的內在關系和空間表現。 （ 2 ）地方財政支出結構優化的本質是在財政配置資源量占社會資源總量合理的前提下，財政資源內部各構成要素符合社會共同需要的目的，並且分配比例協調合理的狀態。 （ 3 ）地方財政支出結構是否合理，直接關繫到支出本身的效率，而既定的支出效率取決于這種結構對經濟變量的影響，即地方財政支出結構的效應。 -
Compared with a delta wing aircraft, the double - delta wing configuration has better aerodynamic performance at high angles of attack. an operational analysis was introduced as a method for evaluating training effectiveness of trainer aircraft. approaches to the engineering estimation of aerodynamic characteristics for aircraft with a double - delta wing configuration were studied, and the procedures for determining aircraft performance indices formulated. taking training effectiveness as the objective function and geometric parameters of the wing platform as design variables, through a numerical multivariate optimization arithmetic, the conceptual design optimization for a certain fighter trainer aircraft with double - delta wing configuration was carried out under the constraints of tactical and technical requirements and interrelated geometry. agreement of a calculation example with engineering practice indicates that the optimal design has higher training effectiveness than the baseline design, and in addition, improves the structural force - bearing conditions
雙三角翼氣動布局比三角翼飛機具有更好的大攻角空氣動力特性.引入了評估教練機訓練效能的作戰分析法，研究了雙三角機翼布局飛機空氣動力特性的工程計算途徑以及飛機性能指標的確定方法.以訓練效能作為目標函數並選取機翼平面形狀的幾何參數為設計變量，採用多變量數值尋優方法，在戰術技術指標及相關幾何約束條件下，對某高級教練機的雙三角機翼氣動布局方案進行了優化選擇.算例表明最優方案不僅比原準方案具有更高的訓練效能，還改善了結構的受力情況，與工程實踐吻合 -
Until jdk 5. 0, it was not possible to write wait - free, lock - free algorithms in the java language without using native code. with the addition of the atomic variables classes in the
在jdk 5 . 0之前，如果不使用本機代碼，就不能用java語言編寫無等待、無鎖定的演算法。 -
Our results show that the rate of correlation among the random variables of those output sequences are low although they are not independent ; in addition, the output sequences of those combined generators are homogeneous markov chains which are strictly stationary processes with ergodicity ; the output sequences of those combined generators are also proved to summit to the strong law of large numbers and the central limit theorem ; finally the computation formula of the rate of the accordance between the output sequences and input sequences of those combined generators is given
我們的研究結論表明：雖然這些序列中隨機變量之間不具有相互獨立性，但它們的相關程度卻比較低；證明了「停走」生成器， km _ 1m _ 2型組合生成器和加法型組合生成器的概率模型輸出序列都是強平穩的和遍歷的齊次馬氏鏈；討論了這些序列的概率極限性質，證明了它們均服從強大數定律和中心極限定理；還分別給出了各類生成器的輸出序列與輸入序列之間的符合率的計算公式。 -
Because of intrinsic randomicity of discrete event system, every operation of simulation is one course of sampling. in addition, the random variables are produced by using the false random number generators, self - dependence is relatively serious. so, the statistical analysis of the simulation result is necessary
由於離散系統本身固有的隨機性，每一次模擬的運行都是一次采樣過程，加之隨機變量是使用偽隨機數產生的，自相關性較強，因此，還對模擬結果進行了統計分析。 -
3. algebraically explicit analytical solutions of two - buoyancy natural convection in porous media applying the approach of separating variables with addition, the thesis derives three sets of simple and clear algebraically explicit analytical equations describing the natural convection in porous media with both temperature and concentration gradients. besides the theoretical meaning, they are more valuable for be the benchmark solutions to check and improve the computational fluid dynamics and computational heat and mass transfer
三、多孔介質中溫度與濃度梯度耦合自然對流基本方程的代數顯式解析解本論文對王補宣院士等給出的反映多孔介質中溫度與濃度耦合自然對流的五元非線性聯立偏微分方程，利用加法分離變量法，導出了三套比較簡明的代數顯式解析解。
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