main engine
主阀环
main valve ring【机】
暂无补充释义。
相关词条
minus
cardinal plane【电讯】;main plane【航】;primary flat【电子】
main line index of transversality
main loop
main optic center
main switch
main pulley for secondary change-speed
main valve ring【机】
暂无补充释义。
main engine
minus
cardinal plane【电讯】;main plane【航】;primary flat【电子】
main line index of transversality
main loop
main optic center
main switch
main pulley for secondary change-speed