The switch is regarded as a combination of character device and network device in embedded Linux . A modular of device driver is registered in kernel and the user processes in user space can manage and configure it by calling the interface .

在嵌入式Linux系统中， 将 交换机看作字符设备和网络设备的 结合 体，在内核中注册了设备驱动程序模块，在用户空间以用户进程的方式通过编程接口对设备驱动程序进行管理和设置。

The essence of this method is to calculate the sensitivity of net loss by changing the switch states . It can quickly determine distribution network structure which reduces line losses of distribution network and reduce the need to consider the combination of the switches by adopting heuristic rules .

此方法的实质是 开关状态改变对网损灵敏度的计算，可以快速确定降低配电网线损的配电网结构，并且通过启发式规则减少需要考虑的开关 组合。

By adopting computer and information sharing technologies the recorder can make comprehensive evaluation on the operation performance of switch machine through periodical testing its operation data in combination with other parameters .

记录仪采用计算机和信息共享技术，定期对 转辙机的运用数据进行测试，并 结合其他指标，对 转辙机的运用性能做出综合评价。

The information security switch mechanism adopts the method of hardware and software combination to realize the information switch and ensures the security of network terminal information .

该信息数据安全 交换机制采用软硬件 结合的方法，实现了信息数据的快速交换，保障了网络终端信息数据的安全。

The author chooses the air conditioning control panel and the combination switch as a typical node in combination with the actual application requirements of the bus-body control system of vehicle manufacturers designs the fault self-diagnosis .

并 结合某主机厂对车身控制的实际应用需求，对系统进行故障自诊断设计。

Photonic ATM switch is combination of photonic switch network and ATM switch architecture .

光ATM 交换是光交换网络和ATM交换结构 相 结合而 形成的一种颇具潜力的交换技术。

It analyzes the advantage of the scheme of high-voltage load switch current-limiting fuse combination compared with traditional vacuum circuit breaker in the protection of transformer up to 1 250 kV · A.

分析了容量在1250kV.A及以下变压器的保护中，采用高压负荷 开关-限流熔断器 组合电器方案较之采用传统真空断路器方案的优势。

Connect differential pressure switch wire to the combination valve .

连接差速压力 开关线至 组合阀。

Flameproof switch which has single control function has deeply restricted the development speed of the coal mine automation . Mining enterprises have urgently demand of flameproof switch combination to control downhole electrical equipment .

控制功能单一的隔爆开关已经严重影响和制约了煤矿井下自动化程度发展的速度，矿企对隔爆 开关 组合控制井下电气设备的需求越来越急迫。

The ultimate target of the research of Matrix Converter is to find switch combination and switch function . To solve the low transfer ratio problem the over modulation strategy of Matrix Converter is put forward .

研究矩阵式变换器的根本目标是寻找 开关 组合和开关函数，针对电压传输比低于0.866的问题，提出矩阵式变换器空间矢量过调制策略。

Based on the example it describes solutions for combination of local switch network of mobile communication and discusses adjustment plan of interconnection between networks in detail . By analyzing traffic flow change after the combination it also gives the principles of circuit setting .

结合实例，介绍了移动本地网 交换网络并网方案，详细探讨了网间互联互通的调整方案，并且剖析了 并网前后的话务流向变化，给出了中继的配置原则。

Application of switch - fuse combination to 12 kV ring main units

负荷 开关-熔断器 组合 方式在12kV环网柜中的应用

Each adapter is a self-contained switch that turns any power socket into a four-port home network connection and supports any combination of PCs or other networked device .

每个适配器都是一个独立的 交换机，可以把任何电源插座变成一个四个端口的家庭网络连接，而且支持任何 个人电脑或其它网络设备连入。

New version IEC 60947 3 standard low voltage switchgear and controlgear part 3 : switches disconnectors switch disconnectors and fuse combination units was introduced . It will be substitution for 1990 version IEC 947 3 same name standard .

本文介绍了1999年新版IEC609473《低压开关设备和控制设备第3部分：开关、隔离器、隔离 开关以及熔断器 组合电器》标准，它将替代1990年版IEC9473同名标准。

It is a great innovation to switch from distribution according to performance to the combination of distribution according to performance and distribution according to production factors which is the main reason of China 's rapid economic boom .

从按劳分配到按劳分配与按要素分配 相 结合 的 转变是中国分配制度的巨大创新，成为中国经济高速增长的主要原因。

Seamlessly turnout of non-ballasted track on bridge switch not only a combination of ballasted track CWR track as well as long-span bridges and other technical characteristics but also spawned a new series of technical problems that is another major technical challenges facing the rail engineering .

桥上无砟轨道无缝 道岔不仅 综合了无砟轨道、桥上无缝线路以及大跨度桥梁等技术特点，而且还衍生出一系列新的技术难题，是轨道工程领域面临的又一重大技术难题。

Realization and Advantage of High-voltage Load Switch and Current-limiting Fuse Combination in Design of Terminal Power Supply & Distribution Substation

高压负荷 开关与熔断器 组合电器在终端变配电所设计中的实现及优势

An Optimization Method of Switch State Combination in Looped Network for Feeder Automation

馈线自动化中环网 开关状态 组合优化算法

The simulation of electrical circuit with plasma erosion opening switch has been done on the basis of the combination of the erosion model with the world wide used electric circuit simulation software package PSPICE .

将等离子体融断 开关 的 融蚀模型与国内外普遍采用的通用电路分析软件PSPICE 相结合进行了具有该种开关的电路的模拟。

Types characteristics and the development and technology of main equipments of high-voltage switch electric appliance as circuit breaker compass combination electric appliance SF6 combination e-lectric appliance home and broad are introduced .

介绍了国内外高压 开关电器中的主要设备（断路器、Compass 组合电器、SF6组合电器）的类型、发展、特点及采用的一些新技术。

The high voltage load switch and current-limiting fuse combination in design of terminal power supply & distribution substation is introduced which includes several respects such as realizable method parameters calculation cooperating characteristics and attention in selecting .

介绍了高压负荷 开关与限流熔断器 组合电器在终端变配电所设计中的实现方法及参数计算，配合特点，选用注意事项。