{TAIL ~ The duration} of each discharge is set shorter than the time period necessary for {HEAD ~ the DC bias voltage}, which is generated on the high frequency applying electrode side, to attain a saturated value 
{ TAIL ~ The duration } of each discharge is set shorter than the time period necessary for { HEAD ~ the DC bias voltage } , which is generated on the high frequency applying electrode side , to attain a saturated value
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH