A novel dual-band 8-arm spiralslot antenna with serial feed is designed.
设计一种新型串行馈电的双频段八臂缝隙螺旋天线。
2
So that the seal was changed for non-contacted type spiralslot mechanical seal.
为此，改为非接触式螺旋槽机械密封。
3
The hot zone is formed by cutting a double spiralslot which reduces the cross sectional area through which current flows, resulting in higher resistance than the cold end.