However, one of the perceived drawbacks of CAN is the inability to bound accurately the worst-case response time of a given message.
但是，CAN也有其不足之处，主要体现在CAN协议对于给定的报文不能保证精确的响应时间。
For real time, the response time should be deterministic and operate within a known worst-case time.
对于实时性要求，响应时间应是确定的并应当在已知的最坏情况的时间内完成。
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