Dual-BUS

基本解释

Formerly known as QPSX (Queued Packet and Synchronous Exchange), now known as DQDB (Distributed Queue Dual Bus).It was approved in 1990.
原来的名称为QPSX（队列分组同步交换），现名为DQDB（分布式队列双总线），1990年获得批准。
In order to avoid single-chip processor's I/O operation interfering with DSP, CPLD extends dual bus for single-chip processor.
为避免单片机I/O操作时干扰DSP子系统，通过CPLD为单片机扩展双总线。
IEEE standard for MANs (Metropolitan Area Networks). Formerly known as QPSX (Queued Packet and Synchronous Exchange), now known as DQDB (Distributed Queue Dual Bus). It was approved in 1990.
IEEE关于城域网标准。原来的名称为QPSX（队列分组同步交换），现名为DQDB（分布式队列双总线），1990年获得批准。
This paper proposes a DQDB integrated sevice local area network,It is configured in optical fiber dual bus structure,using DQDB protocol and can integrate voice, high/low spced data,high quality picture and isochron convocation video.
介绍了一种DQDB综合业务局域网。该网用光纤作传输媒介，拓扑结构为双总线环形，采用DQDB协议，本网可传输数字话音、高/低速计算机数据、高质量静止图像和压缩视频图像等综合业务。
They managed to squash forty people into the bus.
那辆公共汽车好不容易塞进了四十个人。