In other words, {HEAD ~ the condition} of {TAIL ~ intermittent discharge} is preferably set so that the high frequency discharge is turned off before the DC bias voltage achieves a constant maximum value 
In other words , { HEAD ~ the condition } of { TAIL ~ intermittent discharge } is preferably set so that the high frequency discharge is turned off before the DC bias voltage achieves a constant maximum value
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH