CAN总线是现场总线的一种，具有突出的可靠性、实时性和灵活性。
As one of the Field bus, CAN bus have reliability, real time ability and flexibility.
CAN总线作为一种现场总线成为船上设备间通信的重要方式。
CAN bus has become an important mode of communication among Marine equipment.
本文论述现场总线产生的背景，介绍了CAN现场总线的特点，并讨论了在机械加工自动化中的应用。
In this paper, the background of producing the Fieldbus is introduced. The paper discusses the characteristic of CAN bus and the application of automatic manufacture.
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