电网

Power engineer may also work on systems that do not connect to the grid, called off-grid power systems, which in some cases are preferable to on-grid systems.

电力工程师可能也是工作的制度，不接驳电网，叫离网发电系统，在某些情况下是最好的网格系统。

Some small-cap fund managers said the three quarterly, the next will focus on rail, rail transportation, power grids, such as active industrial policy to benefit the company.

一些小盘基金经理表示，3季度，未来将集中于铁路，轨道交通，电网等积极的工业政策，有利于公司。

The operation reliability of power transformer is related to the safety and stability of power system directly.

电力变压器是输电配电网中最重要的设备，也是最容易出现故障的设备，其运行可靠性直接关系到电力系统的安全与稳定。

Because of quality, run and other problems of power transformer, catastrophic accidents and faults often take place.

由于大型电力变压器设计制造质量和运行等诸多方面的原因，恶性事故和故障时有发生，严重影响了电网的安全稳定运行。

According to hydrogen pressure vessel and non-heat pressure vessel of power supply corporation in chongqing electric net as research object , applying exoterica analyse and physical chemistry test to hydrogen pressure vessel and non-heat pressure vessel and carrying through the safety performance evaluation and analyse and research of test .

以重庆电网内发供电企业内装置的氢气压力容器及非热力压力容器为研究对象，应用理论分析和物理化学试验相结合的方法，对氢气压力容器及非热力压力容器进行安全性能评估和检验的分析和研究。

Based on the principle of "Giving first place to safety and laying stress on prevention" and requirements of power safety production, the whole-process safety identification system was established with emphasis on the key points of protection device checking, electrical equipment maintenance, preventive tests, and safety-related operational work. The system is expected to ensure safety of site operation of 500kV substations and prevent happening of faults due to operational and managerial peccancies.

阐述坚持&安全第一，预防为主&的原则，按照现有电力安全生产的各项措施要求，针对500kV变电站内保护装置校验、电气设备检修、预防性试验及运行操作中涉及安全的关键节点，从作业准备、实施到结束，全过程地建立安全鉴证制度，确保500kV变电站现场作业安全，遏制各类行为性违章和管理性违章造成的人身、电网、设备事故的发生。

That system has pair of electrified wire nettings pounding responding to for a short time, quickly , accuracy height , flexibility wait for merit well.

该系统具有对电网冲击小、响应快、精度高、灵活性好等优点。

To meet the requirements of geographical decentralization, large amount of acquisition points, less data, quasi real-time mode of distribution networks, the data acquisition communication newrok was realized by the commercially available GPRS/CDMA wireless public network and was connected with the wirelss network operators with Access Point Name.

针对配电网地理位置分散、采集点多、数据量少、准实时性要求的特点，数据采集通信网络采用成熟的GPRS/CDMA无线公网实现，以APN专线方式与无线网络运营商连接。

Allowing for the characteristics of high-medium voltage distribution system, the SA is modified as follows: using remembrance-guided search method, and modifying the quasi optimum value by pattern search.

结合高中压配电网的特点，本文对SA进行了改进：采用记忆指导搜索方法，并采用模式法修正局部最优解。

The wire-feed speed control system based on negative feedback of speed is designed. The test proves that the performance of this system has been noticeably improved than the common systems. The system can be output steadily under the factors of wire-feed resistance changing or certain different performance of motors, and this system is the base for the further improving of the quality of the pulse MIG welding.

本文设计了基于速度负反馈的送丝调速系统，实验证明该系统的性能较一般系统有了明显的提高，在送丝阻力变化、电网波动或电机性能存在一定差异的情况下，该系统均可以稳定输出，为进一步提高脉冲MIG焊接工艺质量打下了基础。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。