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- digital switching element 数字交换单元
- A digital switching device in telecommunications for routing lines. 电讯中用于线路路由的数字交换装置。
- A network that uses both digital transmission and digital switching. 既使用数字传输又使用数字交换的网络。
- At the telephone company end, ISDN lines connect to a digital switch. 在电话局一端，ISDN线连到数字交换机。
- At the telephone company end,ISDN lines connect to a digital switch. 在电话局一端，ISDN线连到数字交换机。
- Touch screen and digital switches. 数码显示屏及轻触开关。
- This paper deals with a new type square wave power supply for A.C. arc welding in which very fast switching element IGBT is used for its inverter. 研究了以开关速度很快的IGBT作为逆变元件的交流方波弧焊电源。
- The switching element consists of a thin metallic membrane, which has the metal-isolator-metal contact with a capacitive shunt switch as SPST. 开关为一薄金属膜桥组成的桥式结构,形成一个SPST并联设置的金属-绝缘体-金属接触。
- The power control circuit comprises a delay circuit, a potential converter and a switch element. 电源控制电路包括延迟电路、电位转换器，以及开关元件。
- In this paper, a quick and practical fault diagnosing algorithm for the Space-Division digital switching network of SPC switching system is proposed. 本文针对程控数字交换机中一类典型的空分数字交换网络,提出了一个快速、实用的故障诊断算法。
- The PDP driving apparatus includes a high side switch element and a low side switch element which are electrically coupled in series. PDP驱动装置，包含被电性串联连接的高端开关元件和低端开关元件。
- This solution uses digital switch to switching the current and voltage, the current circuit can not be broken when switching, and it is safety to the operator and device. 采用数字量切换方式对电压、电流进行切换，使得电流回路切换没有开路的可能，防止了电流回路开路对人身及设备造成的危害。
- PumpSmart? can toggle between two fixed setpoints through using a digital switch. 可存储两个设定点，通过开关切换，轻松实现两种工艺。
- The operating principle of a bridge type Pulse Width Modulation(PWM) power source,driving of switch element IGBT,overvoltage and overcurrent are briefly described in the paper. 概述了桥式脉冲宽度调制（PWM）功率源的工作原理，以及开关元件IGBT的驱动、过压、过流保护等问题。
- The bidirectional switch element is an element which can conduct current of a same direction when connection and not conduct current of different directions when disconnection. 双向开关元件，是接通时至少可以使一个方向的电流导通、断开时则不使双向的电流导通的元件。
- MPSR P3S is a brand new switch matrix for System 12 Exchange of Alcatel, which is used to replace the aged Digital Switch Network (DSN). MPSR P3S是我公司(上海贝尔阿尔卡特)为提高System 12交换机的容量以及增加业务类型而推出的全新的交换矩阵,它取代了传统S12交换机的电路交换网络(DSN)。
- Voltage switching type SPD generally composed of discharging gap, gas discharging tube, thyratron (silicone controllable rectifier) and three-ending bidirectional silicone switching element. 电压开关型SPD常用的元件有放电间隙、气体放电管、闸流管（硅可控整流器）和三端双向可控硅开关元件。这类SPD有时也称作“短路型SPD”。
- The protection system against condensation is activated by a digital switch channel. It is possible to switch on the protection system manually or to integrate it into a program. 防冷凝的保护系统可通过一个数字开关通道激活。手动或编入程序开启保护系统皆可行。
- First-generation computer A computer that used vacuum tubes as switching elements. 第一代电脑采用真空管做开关元件的电脑。
- Digital switches are now being implemented to accommodate these modulation types. 目前正在安装数字交换机以使前述两种调制方法得以实现。
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