汽车电路图中标有primary CAN BUS 和secondary CAN BUS 是两根什么线啊?

汽车电路图中标有primary CAN BUS 和secondary CAN BUS 是两根什么线啊? CAN-BUS中文是什么意思 You can catch a bus The bus can take___40 people. I-can-take-a-bus. which bus can I take? On a bus 和in a bus 有什么区别 take a bus 和take the bus 有什么区别? bus stop 和bus station 有什么区别 take a bus和by bus用法有什么不同 （ ）bus can I take?The No.10 bus.括号里应该填什么? you can ___ bus NO.5 bus to get there.填什么呢?by 还是take