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- telephone switching device 电话交换装置
- Automatic dehydrating switch device. 脱水自动切换装置。
- A. B. Strowger invents the telephone switch, dial telephone. 史端乔发明自动电话交换系统。
- 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。
- If not,the call went to the company's in-house telephone switching system,or PBX (private branch exchange). 如果没有,电话就转到公司内的电话交换系统(即PBX,用户电话交换机)。
- An IP PBX is telephone switching equipment that resides in a private business instead of the telephone company. IP PBX是私人公司中的电话交换设备,而不是电话公司中的电话交换设备。
- D.Talley, "Basic Telephone Switching Systems", Hayden Book Company, Rochelle Park, N.J. 1969. 由坐标式交换器所组成的交换网路。
- If not, the call went to the company's in-house telephone switching system, or PBX (private branch exchange). 如果没有,电话就转到公司内的电话交换系统(即pbx,用户电话交换机)。
- If not, the call went to the company's inhouse telephone switching system, or PBX (private branch exchange). 如果没有,电话就转到公司内的电话交换系统(即PBX,用户电话交换机)。
- Thus, in the byways of the telephone switching network, the first electrical self was born. 就这样,就在电话交换网络的两面交锋中,第一个电学意义上的自我诞生了。
- The invention discloses an internet media flow transmitting method and system and a switching device. 本发明公开了一种跨网络传输媒体流的方法和系统及一种转换设备。
- In a telephone switching system,inability to make a connection or obtain a service because the devices needed for the connection or service are in use. 在电话交换系统中,由于需要连接或服务的设备正在使用而不能连通或得到服务。
- MR Sensor is a more sensitive switching device comparing to Hall ICs, and more stable performance. MR感应IC比霍尔IC有更高的敏感度也有更稳定的磁场感应度。
- This paper presents a basic method for establishing the simulation models of a telephone switching system by using GPSS-F simulation language. 本文介绍一种应用GPSS-F仿真语言建立一个电话交换系统仿真模型的基本方法。
- Solid state relays are typically comprised of an opto-isolator input, which activates a solid state switching device such as a triac, SCR, or FET. 固态继电器通常包括一个光隔离输入,该输入激励一个固态开关器件,例如双向晶闸管、SCR(可控硅)或FET(场效应管)。
- In a telephone switching system, inability to make a connection or obtain a service because the devices needed for the connection or service are in use. 在电话交换系统中,由于需要连接或服务的设备正在使用而不能连通或得到服务。
- Two main problems in designing the main circuit of switching mode excitation controller are peek voltage and over current of switching device. 开关式励磁调节器主回路设计中需要考虑的两个主要问题是开关器件的尖峰电压和冲击电流。
- Largest switching device of the inspected part of the fixed electrical installation: amperes volts, * [single / three phase]. 固定电力装置受检查部分的最大开关器件为安培伏特,*[单相/三相]。
- It is a piece of telephone switching equipment that generally resides in an organization or business instead of being located at a telephone company office. 它是一个电话交换设备,通常放置在组织或公司内部,而不是电话公司办公室中。
- A transformation plan of adding a switching device and a frequency conver for alternate case is offered so as to strengthen safe reliability. 为加强安全可靠性,提出了增加切换装置变频器互为备用的改造方案。
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