半有限的

First, basing on point halving, this thesis proposed a new efficient algorithm of computing kP lQ on an elliptic curve over the finite field with characteristic 2 and analyzed the computational efficiency. When the ratio I/M of inversion to multiplication cost is small, this new algorithm is about 5%～30% faster than the traditional algorithms.

首先，基于半点运算给出一种计算特征为2的有限域上椭圆曲线双标量乘法kP lQ的新算法并分析了效率，当基域上求乘法与求逆的运算时间的比值比较小时，新算法的效率比已有算法提高5％～30％。

In this paper,we will introduce semi-continuous function and prove a piece of valuable nature about semi-continuous function with the theorem of finite covering .

本文介绍了半连续函数的定义并利用有限覆盖定理证明了上半连续函数有上界的这一重要性质，从而推广了上半连续函数的某些性质并给出相应的证明

To gain some idea of the accuracy of the finite difference equation, we have used the system (14a)-(14c) with the initial E, being a half sine wave for the case of no obstacle.

获得一些想法的正确性有限差分方程，我们所使用的系统(14a的规定)-(14c)与最初的E、半正弦条件下的任何障碍。

This paper studies the classification of two-dimensional representations of free group and free semigroup with two generators over arbitrary field, especially over finite field.

本文研究具两个生成元的自由群和自由半群在任意域，特别是在有限域上的二维表示的分类问题。

This thesis carries on research to a class of nonlinear Schrodinger Equation with wave operator of initial value periodic problem.

本文针对一维带波动算子的Schrodinger方程周期初值问题进行数值研究，对上述方程首先构造了守恒的半离散格式，然后将p次Hermite插值方法与有限差分方法相结合构造了差分正交样条配置格式，并证明这两个格式均为稳定和收敛的格式。

The method of finite elements is often used to solve the problems of interaction between the foundations and the nonhomogeneous elastic inertial half-space.

采用有限元素通常是用来解决问题的相互作用的基础和齐惯性的弹性半空间。

The nilpotency of finite groups was studied by the properties of semidirect product,and some good results were got.

通过半直积的性质来研究有限群的幂零性，并得到一些好的结果。

It is proved that ① Let R be right AGP-injective and right P-V'-ring, then R is left nonsingular ring.

若R是右非奇异的，右有限Goldie维数的右AGP-内射环，则R是半单Artin的。

Ofcom's Media Literacy Audit, released in May last year, pointed out significant sections of the population largely unemployed, or in semi-skilled or unskilled manual jobs that have limited access to technology such as broadband because of cost and a lack of knowledge.

据Ofcom的媒介素养审计，公布于去年5月指出，重大的人口-主要是失业者，或半熟练或不熟练体力劳动-已获得技术的机会有限，如宽带，由于成本和缺乏了解。织梦好，好织梦

A subgroup H of a finite group G is called s-seminormal in G if H permutes with all Sylow subgroups of G with order prime to |H|.

有限群G的一个子群H称为在G中s-半正规，如果H同G的所有阶与|H|互素的Sylow子群相乘可换。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。