timed token

• 定时令牌

timed token的用法和样例：

例句

1. Because every discrete path is unidirectional and the Timed Token scheme keeps devices from talking at the same time,collisions don't occur as they do in Ethernet.
   由于每个离散通道是单向的，并且定时令牌方案避免各设备间同时交谈，因此不会出现以太网中的碰撞情况。