sycamine
干线段
main section【通信】
暂无补充释义。
相关词条
main line index of transversality
main loop
main shaft
undermine
main pulley for secondary change-speed
main spindle
main canal
main section【通信】
暂无补充释义。
sycamine
main line index of transversality
main loop
main shaft
undermine
main pulley for secondary change-speed
main spindle
main canal