查询词典 difference boundary value problem

Economy of article base oneself upon grows dialytic interest difference, think, the interest difference with the result reasonable; that interest difference is economic progress is the main impetus that economy grows, unreasonable interest difference can become economic progress and even the major obstacle that the society develops.

本文立足经济发展透析利益差别，认为，利益差别是经济发展的结果；合理的利益差别是经济发展的重要推动力，不合理的利益差别则会成为经济发展乃至社会发展的重大障碍。

Result There was no significant difference to the number and length of parenchyma cell in the uppermost internode between Shuangdi Pei eS and Shuangdi S in meiosis and dikaryon pollen stages;there was significant difference to those in tikaryon pollen stage, and there was very significant difference to those in anthesis and the 7th day after anthesis,and on the 7th day after anthesis,the difference to the number and length of parenchyma cell in the uppermost internode between Shuangdi Pei eS and Shuangdi S was the greatest.

长穗颈双低培eS与双低S穗颈节间薄壁细胞数及细胞平均长度在减数分裂期和二核花粉期差异不明显，于三核花粉期差异达显著水平，始花当天和始花后第7天均达极显著水平，其中始花后第7天时两者的差异最大。

Results:Biochemical indicators: the concentrations of K+, Na+ and Cl－ in the serum after the infusion are different with those before the infusion; other indicators don't have the significant difference. The mean infusion time of group A is longer than that of group B (p=0.006), while the dosis letalis of KCl doesn't have significant difference between groups (p=0.062); the concentrations of K+ in blood, Na+, Mg2+ and Cl－ in serum have the significant difference between groups; the urine volume and the concentrations of all the urine electrolyte indicators don't have the statistical significant difference between groups.

结果：生化指标：输入钾前后，家兔血清钾离子浓度升高，钠、钙及氯离子浓度降低，具有统计学显著性差异，p=0.000；全血钾及血清其他离子浓度变化，以p=0.05为标准，不具有统计学显著性差异。A、B两组间比较结果：A组输液致死时间长于B组(p=0.006)，致死输钾量无统计学显著性差异(p=0.062)；全血钾、血清钠、镁及氯离子浓度变化值具有显著差异，血清钾、钙、碳酸氢根离子浓度变化值无明显的差异；尿量和尿液各电解质浓度指标无统计学显著性差异。

Results At the dosage of 25 mg/kg,AN could induce higher incidence of fetal resorption and death,and decrease the average fetal body weight and le ngth with significant difference(P＜0.05)when compared with neg ative controls.At the dosage of 35 mg/kg,AN could decrease average vital fet us p er litter with significant difference(P＜0.05),and induce chang es of other indexes with highly significant difference(P＜0.0 1).At the dosage of 25 and 35 mg/kg,AN could induce higher teras rate,maternal t eras rate and malformation rate of vital fetus with significant and/or highly s ignificant difference(P＜0.05 or P＜0.01),resp ectively.There existed a dose-effect or dose-response relationship between abo ve indexes and doses.

结果 25 mg·kg-1组死胎率、吸收胎率升高，胎鼠平均体重、体长、尾长减小，与阴性对照组比较差异有显著性(P＜0.05)；35 mg·kg-1组除窝平均活胎数减少，差异有显著性( P＜0.05)，其余各指标与阴性对照组比较差异有非常显著性(P ＜0.01)；25，35 mg·kg-1组畸胎率、母体畸胎率、活胎畸形率升高，与对照组相比差异有显著性和/或非常显著性(P＜0.05或P ＜0.01)，且有明确的剂量效应或剂量反应关系。

The difference between goose down and duck down and the difference between wool and down were compared. Their difference in morphological structure as well as the resultant difference in property were elucidated.

比较鹅绒与鸭绒在形态上存在的差别，并与同类的蛋白质纤维－羊毛进行对比，阐述二者结构上的差异以及由此产生的性能上的差异。

The technique of boundary-fitted coordinate system is used to overcome the difficulties resulting from the complicated shapes of natural river boundaries;the method of alternating direction implicit finite difference scheme is used to solve the partial differential equations in the transformed plane;and the technique of moving boundary is used to deal with the river bed exposed to water surface.

用适体坐标技术克服天然河道复杂的几何边界给有限差分法所带来的困难；用交替方向隐式有限差分格式求解变换平面上的偏微分方程；用动边界技术处理河床的淹露。

In chapter 2,all kinds of numerical methods of computational fracturemechanics are summarized,the development histories and present situation ofboundary collocation method,boundary integral method,finite difference method,boundary element method and finite element method are expounded,and theapplication of finite element method in fracture mechanics are emphaticallydiscussed.

第二章 总结了计算断裂力学中各种数值方法，论述了边界配位法、边界积分法、有限差分法、边界元法及有限元法的发展历史和现状，并着重讨论了有限元法在断裂力学中的应用。

The method uses Cartesian grid for the majority of flow field with special treatment to cells cut by the solid boundary, thus not only retains the advantage of Cartesian grid's high solving speed, but also ensures the high precision near the boundary, which avoids the distortion coming from scalariform mesh with traditional difference method.

该方法在流场主要区域采用笛卡尔网格，而对与固体边界相交处的单元采用特殊的处理。这样既保留了笛卡尔网格求解速度快的优点，同时在边界处又保证了精度，避免了传统差分法处理该类问题需采用阶梯形网格逼近而导致的失真问题。

To obtain the unknown intermediate vector function needs to solve a Fredholm integral equation of the first kind, the solution of which can only be determined with a difference of a vector proportional to the normal of the boundary and its integration on the boundary must zero.

可是要求出该积分表达式中待定的边界上的向量密度函数要导致求解第一类Fredholm 积分方程。

The stability of algorithm, the condition of absorbing boundary and free surface boundary, the grid dispersion and the process of source are discussed in details. The numerous simulations of wave propagation are carried out in isotropic media, transversely isotropic media and anisotropic media induced by fractures. The difference between anisotropic and isotropic effects on surface records is analysized.

接着讨论了有限差分算子的稳定性和收敛性，以及吸收边界条件、自由边界条件、数值频散和震源的处理，对各向同性介质、横向各向同性介质以及裂隙引起的各向异性介质中传播的弹性波场进行了数值模拟，分析了多波多分量数据中的各向异性效应以及各向同性在地表地震记录中的反映。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。