main line
总回风道
main return【矿】
暂无补充释义。
相关词条
cardinal plane【电讯】;main plane【航】;primary flat【电子】
main pulley for secondary change-speed
pressure main
main bud
backbone; main support
main fermentation
main
main return【矿】
暂无补充释义。
main line
cardinal plane【电讯】;main plane【航】;primary flat【电子】
main pulley for secondary change-speed
pressure main
main bud
backbone; main support
main fermentation
main