can总线的电磁兼容性的一个小论文，里面主要讨论了分支与主干长度问题，数据传送速度问题以及在远距离进行通讯时所对电磁干扰的一点建议-EMC can bus in a small paper, which mainly discussed the issue of branch and trunk length, data transmission speed, as well as in long-distance communication when on the electromagneti