查询词典 approximate differential

The crystal structures have been determined by X-ray diffraction method, which show that the new complex [Co2-Co(2)(0H2)s] belongs to the bridging binuclear complex and the system of monoclinic with space group P211~,unit cell parameters a8.3850(10)A, b=27.386(4) A, c=9.610(2) A,~=98.280(10)~,V=2 183.8(6) A3 , Z=4, Dc=l.746Mg/m3,~i =l.597mm, F(000)=1168, Final R=O.0253 and wR=O.0610 S1.009 ,The two Co2~ are in distorted octahedrons. The part of [2Co] possess an approximate D2d symmetry, while the part of [OCo(2)(0H2)5] has an approximate C2 symmetry.

结构分析表明配合物(1)[Co1，(DPC2-Co(2)(OH2)5]是一个未见报导的桥联双核配合物，属单斜晶系，空间群为P2_1／c，晶胞参数：a=8.3850(10)A，b=27.386(4)A，c=9.610(2)A，β=98.280(10)A，V=2183.8(6)A~3，Dc=1.746Mg／m3，Z=4，μ=1.597mm-1，F(000)=1168，结构偏离因子R=0.0253和ωR=0.0610，吻合因子S=1.009，Co_(1)和Co_(2)的配位多面体皆为扭曲正八面体，[_2Co_(1)]部分具有近似D_(2d)对称性，[OCo(2)(OH_2)5]部分具有近似C_2对称性。

In chapter 3, the author considers that approximate value of Bessel fuctions and transcendental equations are main ob stacle to realize computer simulation for isolated well principle. The character of Bessel functions are studied, new approximate values of Bessel function are set forth.

第3章中，针对&割离井法&微机实现的难点——贝塞尔函数的渐近计算和超越方程的合理求解，研究了贝塞尔函数的性质，提出了新的贝塞尔函数的渐近式，并采用ZEROIN法完成了超越方程的求解，最后编制出新的&割离井法&计算程序。

The equilateral and straight traverse replacing the approximate equilateral and straight traverse is introduced in the paper, so the question of the rational match of the side-angle-weight in the approximate equilateral and straight traverse survey is solved.

主要介绍以等边直伸导线代替近似等边直伸导线，以解决不同类型近似等边直伸导线测边测角权的合理匹配问题。

Continuation--Optimization method is proposed for approximate synthesis of linkages The synthesis of planar four-bar and six-bar linkages are studied using this method and several solutions are obtained. Thus, selection of the optimum solution for approximate synthesis of linkages is realized.

提出了机构近似综合的连续---优化法，并应用该方法研究了平面铰链四杆及六杆机构的函数综合，得到了多组机构尺寸方案，实现了机构近似综合的多方案优选。

The decline of approximate 2 points (1.9 to 2.5 points) in physical capacity and approximate 1.5 points (1.3 to 2.0 points) in psychological well-being were responsive to the level changes of the self-feeding, self-dressing, or grooming from "independent" to "some help needed" or from "some help needed" to "completely dependent."

生理范畴的分数下降约2.0分(1.9至2.5分)、心理范畴的分数下降约1.5分(1.3至2.0分)反应出吃饭、穿衣、整理容貌这三项日常生活活动能力的状态从&不需要帮助&变成&需要一些帮助&，或是从&需要一些帮助&变成&完全需要别人帮助&。

Furthermore, the relationship between the residual norm of the semi-refined approximate eigenpair and that of the approximate refined eigenpair is discussed. The semi-refined biorthogonalization Lanczos algorithm is given. We carry on some numerical experiments, and the results show that the new algorithm is more efficient than its conventional counterpart.

根据精化投影方法的思想，提出了半精化双正交Lanczos方法，建立了半精化特征对和精化特征对对应的残量范数之间的关系，给出了半精化双正交Lanczos算法，数值实验表明，该算法比双正交Lanczos算法和拟精化双正交Lanczos算法优越。

The decline of approximate 6 points (5.5 to 7.3 points) in physical capacity and approximate 4 points (2.9 to 5.1 points) in psychological well-being were responsive to the level changes of the walking, transferring, bathing, toileting, or controlling bladder and bowel movements from "independent" to "completely dependent."

生理范畴的分数下降约6.0分(5.5至7.3分)、心理范畴的分数下降约4.0分(2.9至5.1分)反应出走路、上下床铺、沐浴、上厕所、大小便控制这五项日常生活活动能力的状态从&不需要帮助&变成&完全需要别人帮助&。

A generalized mathematical model was developed to describe the distribution of over-potential.Dimensionless variables μ and ω that characterize the polarization and influence of side electrode reaction in the system,were derived from modeling.Adomian's decomposition methodADM）was used to solve the nonlinear differential equation of the model to obtain an approximate analytical solution,which was in the form of algebraic expressions of infinite power series.By the solution,the relationship between over-potential distribution and average selectivity could be easily calculated without solving the nonlinear model time and again.

建立了描述超电势分布的普遍化数学模型，归纳出表征电极极化和副反应影响的量纲1数μ和ω，并用ADM（Adomian's decomposition method）对该非线性微分方程模型求解；所获得的逼近解代数表达式，可方便地计算不同参数下超电势分布对平均选择性的影响，而毋需反复求解模型微分方程。

It is mathematically strict without any differential approximate calculation and is supposed to obtain the maximal precision of the floating-point operations of computer.

在数学上也严格成立，数值编程计算不存在差分近似，精度达到了计算机浮点运算的极限精度。

Using this method, we will get the approximate solution of the fractional differential equations.

第三章在第二章的基础上把这个方法推广到更加复杂的分数阶微分方程，同样通过数值例子表明了该方法的高精度性和有效性。

The small blue capacitor has very high chances to go fully shorted compare to electrolytic capacitor which is very rare.

小蓝电容器具有很高的机会去充分地缩短了比较电解电容器，这是非常罕见的。

In the Italian campaigns of 1513 and 1515, when the Swiss won the victories of Novara and Marignan, he acted as army chaplain.

在意大利的运动， 1513年和1515年，当瑞士赢得了胜利，诺瓦拉和marignan ，他担任军队的牧师。