Simultaneous hold

同义词释义

1)Simultaneous hold,同抢,双占用,双重占线2)Dual Holding,双重占用3)Double occupiation,双重占位4)glare,闪光，强光，光泽;双占用(中继线两端同时被占用)5)glare resolution,双占用分解6)head on collision,同时呼叫，双占