查询词典 exponent

Three methods for the computation of the isotropic tensor function,spectral decomposition method,eigenprojection operator method and representation theorem method,are compared.Different approaches to calculate the eigenvalues and their corresponding eigenvectors are also discussed.As an example,the exponent tensor function is calculated.

对计算各向同性对称张量函数的3种方法(谱分解法、特征投影算子法和表示定理法)进行了分析比较，同时也对如何计算特征根与特征向量的技巧进行了探讨，并利用3种方法对指数张量函数进行了实例计算。

In this paper,the effects of RDX/AP proportion on deflagration temperature,Hcl content in combustion products,burning rate and burning rate pressure exponent have been studied.

本文研究了RDX/AP配比对其HTPB复合推进剂爆温、燃烧产物中HCl含量、燃速和燃速压力指数的影响。

Democritus and his followers were the early exponent materialism.

德谟克利特和他的追随者是早期的唯物主义者。

This paper studies the main geometrical parameter such as angle, height, width, stagger and the upper width in dentation and trapezoid flow path, firstly, uses the single-phase numerical simulation of the computational fluid dynamics technique to analyse the influence of different geometrical parameter on discharge coefficient and flow state exponent of drip emitter. Secondly, uses the two-phases numerical simulation of CFD (1% sand content ) to analyse the influence of the above mentioned geometrical parameter on the contribution regulation of sand and anti-clogging performance. Thirdly, uses the PIV （ particle Tracking Velocimetry ） technique which can see the small-scale flow path to observe and test the trajectories and velocities of solid particles in labyrinth flow path, and analyses the basic factors which can influence the movement characteristic of solid particles and the flow state in flow path.

本文以齿形流道、梯形流道为主要研究对象，以流道转角、流道高，流道宽、偏差量及梯形流道上底宽为主要结构参数，首先应用 CFD 单相流数值模拟技术对不同结构参数灌水器流道水力性能进行模拟，分析了不同结构参数对流态指数和流量系数的影响，其次，应用 CFD 两相流（含沙量为1%）数值模拟技术分析了结构参数对含沙量分布规律和抗堵塞性能的影响，然后，应用 PIV 可视化测试方法测试了固体颗粒在流道内运行轨迹及速度，分析了影响固体颗粒运动特性及流道内流体流态的基本因素，最后，对上述流道结构形式通过模具加工及滴灌带试制，进行了标准化测试（ GB/T 17187-1997 农业灌溉设备滴头技术规范和试验方法与 ISO 标准 ISO /TC23 /SC18 /WG5N4短周期堵塞测试程序），测试结果验证了 CFD 模拟结果，并提出了迷宫结构流道灌水器的抗堵塞设计方法。

The exponent of the derivative of highest order in a differential equation in standard form.

次：标准形式下的微分方程里最高次序的微商的幂

The basic theory of extended finite element method are expounded particularly, and given a class of enrichment displacement functions---the exponent discontinuous function which is presented to simulate the discontinuous character resulted from discontinuity such as crack.

本文详细阐述了扩展有限元法的基本原理，提出一类附加位移形函数-指数型间断函数来描述由裂纹所导致的位移不连续规律。

XFEM;the exponent discontinuous function;crack

扩展有限元法；指数间断函数；裂纹

An ambiguous condition exists if the exponent of r is too large to be accommodated in IEEE double-precision format.

如果 r 的指数部分大於能以 IEEE 双精确格式容纳时，将会有模稜两可的情况存在。

An ambiguous condition exists if the exponent of the IEEE double-precision representation is too large to be accommodated by the internal representation.

如果 IEEE 的双精确表示法的指数部分大於能以内部表示法容纳时，将会有模稜两可的情况存在。

It s difficult to discuss the existence of nontrivial solution for an elliptic equation involving critical exponent.

利用集中紧引理和Hardy不等式克服这个困难，运用山路引理证明了一类非线性椭圆方程非平凡解的存在性

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。