查询词典 summations

Based on the author's own teaching accumulation , this paper puts forward kinds of summations of power series and series of numbers through exmaples .

结合自己的教学积累，通过实例，给出数项级数求和的多种途径。

All the angular integrations and spin summations involved in the problem have been carried out explicitly.

完成了所有角向积分和自旋求和计算，使精细结构能量表示为若干个径向积分之和。

However if h is allowed to evolve freely to maintain a constant number of neighbours in SPH summations , such unwanted effects can be avoided and accuracy improved .

若随时调整h的值使得SPH方法计算粒子的邻近粒子数总和保持不变，则可以避免这种有害的影响，使准确性得到提高。

On the basis of experienced engineering technicians,constant research,development and summations,a series of new-typed double screw extruders of high torque and speed and deep groove come into being.

拥有一批经验丰富，实力雄厚的工作技术人员，在研制开发和不断总结的基础上，一系列高扭矩，高槽深，高转速的新型双螺杆混炼机应运而生。

and chapter summations .

抽象和章总结。

5 Involving four arbitrary sequences and other general bilateral summations.

并由此得到了几个基本超几何级数求和公式及其极限情况。

Because the logical standby database remains open , tables that are maintained can be used simultaneously for other tasks such as reporting , summations , and queries .

由于逻辑备用数据库保持打开状态，那些被主数据库维护着的表可以同时提供其它服务，比如生成报表，计算，以及查询服务等。

In the course of these derivation, the orbital integrations and the summations over spin are completed and are presented3j, 6j, 9j symbols and the radial matrix elements.

在这些推导中，完成了所有角向积分和自旋求和计算，相应的结果用3j、6j、9j符号和待定的径向矩阵元来表示。

After all the angular integrations and spin summations completed, the needed parameters in the non-relativistic wave functions have been acquired using the variational method and so the functions themselves have been established in this way.

在第三章中，利用对角和法则，导出了类硼离子基态及第一激发态非相对论能量的解析表达式，完成涉及到的角向积分和自旋求和后，利用变分原理求出了非相对论性波函数中的待定参数，从而确定了非相对论性波函数，并获得类硼离子基态及第一激发态非相对论能量。

Summations are almost invariably indicated ellipses instead of the more prevalent sigma notation .

在表示&连加&的式子中，几乎一成不变地使用省略号来代替更为流行的&∑&符号。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。