短语词组短語bare bus -bar [電]裸母線;裸滙流排Bus -bar fault 母線故障generator bus -bar 發電機母線bus -bar span 母線跨距tour bus -bar 母線triple bus -bar 三聯滙流條;三母線positive bus -bar [電]正母線;正滙流排busbar system 母線系統；滙流排 返回 bus-bar