步进式自动电话系统

step-by-step automatic telephone system【通信】

暂无补充释义。

相关词条

step-by-step

step-by-step call indicator

step-by-step relay【通信】电;stepping relay【通信】电

stagewise regression【数】;step-by-step regression【数】;stepwise regression【数】

step-by-step procedure

step-by-step, actuation

step-by-step switch testing equipment

step-by-step drive【自】