minus
总管式压载水系统
main line type ballast system【建】
暂无补充释义。
相关词条
main line index of transversality
main loop
main shaft
undermine
mine
main optic center
main pulley for secondary change-speed
main line type ballast system【建】
暂无补充释义。
minus
main line index of transversality
main loop
main shaft
undermine
mine
main optic center
main pulley for secondary change-speed