90 per cent of listeners had stayed with the programme when it changed its time slot.节目改变播送时段后，90%的听众依然继续收听。TDMA allocates each user a different time slot on a given frequency.TDMA在给定频率为每个用户分配不同的时隙.Remark: Students can f...
采用七水硫酸亚铁与本征态聚苯胺的固相掺杂反应,获得了同时具有导电性和导磁性能的新型结构复合材料.The electrical and magnetic conducting polyanilines doped with sulfate have been synthesized by solid - state ball - mill reaction.电感式纠偏检测方法以其独特的优点已广泛应用于各种导磁性带钢纠偏控制系统中.Indu...