查询词典 FRAC

In Chapter 2, starting from the basic fractional ordinary differential equations,weapply a high order approximation of fractional derivative advanced by Lubich to frac-tional differential equation, construct a high numerical difference scheme to solve thefractional differential equation, present error analysis of the algorithms theoretically,and prove the consistency ,convergency and stability.

接下来的第二章中，首先从基本的分数阶常微分方程出发，对Lubich提出的一个关于分数阶导数的高阶近似，将其应用于分数阶微分方程，构造高阶数值差分格式来进行分数阶微分方程的数值求解，并在理论上给出这一算法的误差分析，证明了它的相容性，收敛性和稳定性。

With 3-D transient finite element analysis, the time evolution of dynamic stress intensity factor under different loading rates was obtained and the dynamic fracture toughness was determined by frac...

结合有限元三维动态模拟，得到了不同加载速率下试样动态应力强度因子的时间历程，并由实测的起裂时间确定两种钢的动态断裂韧性。

To our knowledge, that study represents the largest reported series of proximal tibial frac- tures.

拒我们所知，该研究是目前已经报道的最大规模的胫骨近端骨折的研究。

The results show that laminar burning velocity increases exponentially with the increase of hydrogen frac...

通过对试验结果的数据拟合，得到了计算天然气—氢气—空气混合气层流燃烧速率的关系式。

Methods for raw jadeite evaluation have been discussed in respect of texture, color and frac ture.

从质地、颜色和裂隙等方面讨论了赌石预测方法。

Objective To discuss reasonable treatments and the best adaptive symptom in femoral neck frac ture in elderly.

目的 探讨老年股骨颈骨折的合理治疗方法及最佳适应证。

Results In elderly AF patients the incidence rates of left atrial and ventricular enlargement,decreased ejection frac...

结论心脏结构和功能的改变可能是老年房颤发生和发展的危险因素之一。

Some methods of generating anisotropic elastic constants for frac tured and microbeded rocks are discussed.

本文还讨论了一些用于产生裂隙和叠层介质的各向异性弹性常数的方法。

Also as reported to the PADEP, on September 22, 2009 a release of frac fluid occurred on the same location of approximately 420 gallons.

另外，作为报告的PADEP于2009年9月22日压裂液的释放，发生在约四百二加仑相同的位置。

From many facts, it could be thought that the chief ore-controlling frac ture is of features of tenacious shear.

本文认为胶北地体的大地构造背景与南非克拉通的成矿构造背景十分相似。

Smoking cigarettes adds to the Computer Desk Computer manufacturer computer mouse Computer Computerized collar knitter machine Conduit Bodies construction board Container Bag Control Arm Cooking Thermometer general levels of air pollution as well as damaging our health.

吸烟不仅对健康有害，而且增加空气污染程度。香烟雾含有多种有害物质：不仅有致癌化学物质、有某种能阻止氧气进入血液的气体，还有引起血压增高、心速加快的被称为尼古丁的物质。

He is one of my favorite actors.

他是我最喜欢的男演员之一。