dual-ring topology 双环形拓扑结构 ; 双环拓扑
dual ring network 双环形网络
dual-ring 双环
Dual Ring with Tree 含树状双环架构
Dual Ring without Tree 不含树状双环架构
network dual ring 双环形网络
Dual-ring network 双环结构
Dual Ring Control 双环控制
The comparison is in term of fiber required, average propagation delay, transmission loss, max bit rate, fault tolerance among four type topologies included bus, star, ring and dual ring.
针对双总线形、星形、环形和双环形四种光纤网络拓扑，比较它们的光纤需求长度、平均传播延迟、传输衰减、最大比特率及容错。
If so, is it possible to make it a redundancy double (dual) ring network to ensure the high reliability of the automation system?
如果能，是否可以构成冗余的双环形网络来保证自动化系统的可靠性？
Labyrinth seal and piston ring provide a dual sealing system, keeping oil clean and reducing wear.
曲径汽封和活塞环提供了双密封系统，使油保持洁净并减少磨损。
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