无系统的

There is no definition of the electronic evidence provided by laws, and the electronic evidence discussing here is computer evidence, which is generated in the operating process of computer or network system, stored as digital format in the computer memory or external storage medium, and testifying the facts by its digital data or information. It is manifested as E-mail, electronic bulletin board, electronic document, electronic signature, electronic chatting record, web-page, web-video, database, etc.

我国法律法规对电子证据并无定义，本文探讨的电子证据是指计算机证据，即在计算机系统或者网络系统运行过程中产生的、以数字形式保存在计算机存储器或外部存储介质中、能够证明案件真实情况的电子数据或信息，其表现为电子邮件、电子公告板、电子文档、电子签名、电子聊天记录、网页、网络视频、数据库等多种形式。

The method solves the real time problem of how to extract the positive sequence active and reactive currents from an unsymmetrical and distorted three phase system by fan-in theory, and simplifies the system structure and reduces the computation burden.

既解决用扇合矢量法从三相不对称、含畸变的系统中提取基波正序有功、无功电流的实时性问题，又达到简化系统结构和减少计算量的目的。

Its aim is to review national musical aesthetic psychology deeply through depending on the theory of Ethomusicology, adhibitting investigation tropism leaning to humanism, standing out mentalistic society idiosyncracy and using historical culture analytical method and cause and effect analytical method.

课题研究主要内容：音乐民族审美心理形成的基本条件是受自然系统中的地理环境、人种特征，社会系统中生产方式、社会政治结构、哲学思想、宗法、原始神话、集体无意识等因素的影响与作用。

In the second chapter, we consider a kind of Kolmogorov system. The sufficient conditions of nonexistence of the closed orbit and existence of the unique and stable limit cycle are obtained.

第二章讨论了一类Kolmogorov系统，得到了系统无闭轨的充分条件和存在唯一稳定极限环的条件，推广了颜向平，张存华等的结果。

Monoid algebra system is selected as the mathematical model of PORDBMS, and BSP as the parallel model. Monoid algebra system is powerful in expanding data types, offers a uniform notation for queries involving collection data types and methods, and provides a rigorous theoretical foundation.

在电网络有功分配与计算方面，本文较系统地分析了一般电网络模型与网络流规划算法模型的关系，从非线性无损失网络和有损失网络的角度研究了非线性网络流规划法求解电力系统网络问题的方法。

Finally, the thesis investigates the problem of intelligent personalized information recommendation in Internet, which is a kind of problem that there are no exact goal and no problem operator model. A domain oriented and adaptive multi agent system model for information recommendation is presented.

智能化、个性化信息搜索服务的目标是能根据用户的兴趣，向用户推荐其所感兴趣的信息，而用户的兴趣又要求系统通过用户的反馈来逐步感知，因而这类问题有别于前面研究所涉及的问题，是一种属于既无问题操作模型，又无确定目标的问题。

The results showed that there were different natural sedimentation in the rearing ponds, with or without fish, either fed or not. Compared with the non-stocking ponds, the quantity of new particle formation and the sediment formation in rearing pond was 15.63% higher and 19.49% lower in the ponds with fish when same quantity feed was introduced. In the unfed condition, however, s...

试验结果表明：无论养鱼或未养鱼，投饲或不投饲，各池均发生不同程度的沉积；外源饲料输入量相同时，养鱼池新颗粒物生成量比未养鱼池大15.63%，而沉积量比未养鱼池小19.49%；无外源饲料输入时，养鱼池的沉积量比未养鱼池大75.76%；养殖系统内养殖对象与其所处环境的相互依存和相互制约对系统新颗粒物生成及沉积具有重要作用。

This article introduced in detail does not have the electric cable to coordinate the controller the overall design and its hardware electric circuit, the software procedure: Voltage comparator, 2 frequency multipliers, synchronized clock electric circuit, 6 7SEDLED nixietube display circuit.

本文详细介绍了无电缆协调控制器的整体设计和其硬件电路软件程序其硬件电路组要有：电压比较器2倍频器同步时钟电路6位7SEDLED数码管显示电路系统软件包括：主程序子程序实现控制程序等实验表明：该无电缆协调控制器系统可以准确的对信号灯进行监控和教正，可以在一定程度上解决混合交通流的问题

With operating the excitation control system with PLC, this design maintains the terminal voltage of the generator and the whole system, distributes the wattless loads equitably over the generators, makes sure that the generator works normally and the electricity power system functions savely.

本设计通过用可编程控制器控制发电机的励磁系统，来稳定发电机的机端电压，并稳定地分配机组的无功功率，来满足发电机正常发电及电力系统安全运行的需要。

ABB's gearless mill drives (giant motor and drive systems that power ore-crushing mills) are more reliable and energy efficient than traditional mill drive systems, and increase mill productivity.

ABB的无齿轮磨机驱动（为碎矿石磨机提供动力的大型电机和驱动系统）比传统的磨机驱动系统更可靠更节能，而且增加了磨机的生产力。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。