若干

After several years, Muhammad and his follower s were able to return to Makkah, where they forgave their enemies.

经过若干年，穆罕默德及其追随者返回麦加，并宽恕他的敌人。

Bufo marinus were kept for several weeks at 27℃.

縁蛙和豹蛙在5℃下保持若干星期。

In this paper, we discussed some problems of three special risk models with interest by recursive method and Martingale method.

本文主要运用递推方法以及鞅方法研究了三种特殊的带利率风险模型的若干问题。

A few years later, penicillin was being mass-produced and helping to save the lives of millions.

若干年后，青霉素被大规模生产，帮助挽救了成百万人的生命。

The new camcorder also has several down-conversion modes that output converted standard-definition signals to users' current SD production systems, including displays and DV non-linear editing systems, while retaining an HD master tape for future use.

新的摄像机也有若干下降转换方式转换输出标准清晰度信号，用户目前处在生产系统，包括显示器和dv ，非线性编辑系统，同时保留了主高清磁带，供今后使用。

Several problems about mathematical physics are discussed by qualitative methods.

全文围绕若干数学物理问题的定性分析展开讨论。

Matrix decomposition meams the summation of dividing matrix into several pieces of matrix or product, it is the important in which solved method of some linear algebras problem, its research is significant.

摘要矩阵分解是将一矩阵分解为若干个矩阵的和或乘积的形式，它是解决某些线性代数问题的重要方法，它的研究具有重大的意义。

This leads to Rees matrix representation theorems of some generalized completely simple semigroups.

本文首先建立了某类U-半超富足半群的Rees矩阵表示定理，并由此得到了若干广义完全单半群的Rees矩阵表示定理。

Necessary and sufficient conditions for the existence and the expressions of selfconjugate solution, perselfconjugate solution, centrosymmetric solution, bisymmetric solution, skewselfconjugate solution, skewperselfconjugate solution, skewcentrosymmetric solution, and skewbisymmetric solution to 4 kinds of systems of linear matrix equations over a regular ring with an involutorial antiautomorphism are given.

利用矩阵技巧和所建立的矩阵理论，给出了正则环上五类矩阵方程组有解的若干充要条件和一般解的表达公式。这些矩阵方程组除了它们在理论上有重要的意义外，还有重要的应用价值。在具有对合反自同构的正则环上，给出了四类矩阵方程组有双对称解，中心对称解，斜中心对称解，广自共轭解，斜广自共轭解，自共轭解以及斜自共轭解的充要条件及其这些解的具体表达式。

By the definition of Green-relation and the analogue of generalized Greens lemma, this paper first studied some properties of H-class、 D--class of rpp semigroups, then by left S-system 、-bisystem and tensor product, we described a blocked Rees matrix semigroup. Especially, the paper studied primitive rpp semigroups .

本文利用在rpp半群上定义的广义Green~(l-关系及相应的广义Green定理，首先研究了rpp半群H~(l-类、D~(l-类的若干基本性质，然后以左S-系、-双系和张量积作为工具，刻画了块Rees矩阵半群结构，最后从带零的本原rpp半群出发，构造出A型块Rees矩阵半群，并证明了一个半群S为本原rpp半群，当且仅当S同构于一个A型块Rees矩阵半群。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。