例句與造句

1. in the finite element method, one of the restrictions on the approximating functions is relaxed .
   在有限單元方法中，放開了定近似函數(shù)的限制。
2. when adding an entropy function as regularizing term to the lagrangian function, we obtain a smooth approximate function for m ( x ), which turns out to be the exponential penalty function
   當(dāng)將熵函數(shù)作為正則項加到拉格朗日函數(shù)上，我們得到了逐點逼近于m(x)的光滑函數(shù)。經(jīng)證明，該函數(shù)即為指數(shù)罰函數(shù)。
3. by constructing approximate functions and using prior estimate and conversion of variable, it is proved that the inverse problem has weak solution for given initial value, boundary value and the oil output
   通過變量和函數(shù)變換，作逼近函數(shù)和估計等方法，證明了對給定的初邊值和石油產(chǎn)量，此反問題存在弱解。
4. ph linearization method is employed to solve a nonlinear reynolds equation for a steady state and micro-scale flow field, and the approximate function expressions of gas dynamic pressure and velocity in the spiral groove are obtained
   摘要應(yīng)用ph線性化方法、迭代法，近似求解了螺旋槽內(nèi)穩(wěn)態(tài)微尺度流動場的非線性雷諾方程，求得了氣體動壓和速度分布的解析解。
5. 2 . for the problem with size, stress and displacement constraints, the stress constraint is transformed into movable lower bounds of sizes, the displacement constraint is transformed into an approximate function which explicitly includes design variables by using mohr integral theory . a mathematical programming model of the optimization problem is set up . the dual programming of the model is approached into a quadratic programming model
   2.對于尺寸、應(yīng)力和位移約束的問題，將應(yīng)力約束化為動態(tài)下限，用單位虛荷載方法將位移約束近似顯式化，構(gòu)造優(yōu)化問題的數(shù)學(xué)規(guī)劃模型，將其對偶規(guī)劃處理為二次規(guī)劃問題，采用lemke算法進(jìn)行求解，得到滿足尺寸、應(yīng)力和位移約束條件的截面最優(yōu)解。
6. It's difficult to find approximated function in a sentence. 用approximated function造句挺難的
7. this feature reflects the physical phenomenon of breaking of waves and development of shock waves . in the fields of fulid dynamics, ( 0.2 . 1 ) is an approximation of small visvosity phenomenon . if viscosity ( or the diffusion term, two derivatives ) are added to ( 0.2 . 1 ), it can be researched in the classical way which say that the solutions become very smooth immediately even for coarse inital data because of the diffusion of viscosity . a natural idea ( method of regularity ) is obtained as follows : solutions of the viscous convection-diffusion pr oblem approachs to the solutions of ( 0.2 . 1 ) when the viscosity goes to zeros . another method is numerical method such as difference methods, finite element method, spectrum method or finite volume method etc . numerical solutions which is constructed from the numerical scheme approximate to the solutions of the hyperbolic con-ervation laws ( 0.2 . 1 ) as the discretation parameter goes to zero . the aim of these two methods is to construct approximate solutions and then to conside the stability of approximate so-lutions ( i, e . the upper bound of approximate solutions in the suitable norms, especally for that independent of the approximate parameters ) . using the compactness framework ( such as bv compactness, l1 compactness and compensated compactness etc ) and the fact that the truncation is small, the approximate function consquence approch to a function which is exactly the solutions of ( 0.2 . 1 ) in some sense of definiton
   當(dāng)考慮粘性后，即在數(shù)學(xué)上反映為(0.1.1)中多了擴散項(二階導(dǎo)數(shù)項)，即使很粗糙的初始數(shù)據(jù)，解在瞬間內(nèi)變的很光滑，這由于流體的粘性擴散引起，這種對流-擴散問題可用古典的微分方程來研究。自然的想法就是當(dāng)粘性趨于零時，帶粘性的對流-擴散問題的解在某意義下趨于無粘性問題(0.1.1)的解，這就是正則化方法。另一辦法從離散(數(shù)值)角度上研究僅有對流項的守恒律(0.1.1)，如構(gòu)造它的差分格式，甚至更一般的有限體積格式，有限元及譜方法等，從這些格式構(gòu)造近似解(常表現(xiàn)為分片多項式)來逼近原守恒律的解。