本文首先介绍了现场总线CAN通信协议。
Introduce the communication agreement of field bus CAN at first.
为达到此目标，现场总线网络从硬件和通信协议上对传统网络作出了改进。
Aiming at this goal, it improves its hardware and communication protocol from traditional computer networks.
为达到此目标，现场总线网络从硬件和通信协议上对传统网络作出了改进。
Aiming at this goal, it improves its hardware and communication protocol from traditional computer networks.
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