pluginadj.插入式的plugn.塞子；插头；推销；火花塞；口嚼烟v.塞；堵；宣传；插上插头；苦干plug ended cable端接插塞电缆plug-in-unitn.插件plug end fitting终端接头,管接头plugging up cord闭塞塞绳plugging machine塞瓶机plugging failure冲塞断裂plug screw blank螺塞毛坯plug type nozzle塞式喷管plug and control即插即控pluggable module可插模块