Also, {HEAD ~ a portion} of {TAIL ~ the atmosphere} within the chamber 54 can be purged from the chamber 54, and an atmosphere having a lower moisture content can be introduced into the chamber 54 
Also , { HEAD ~ a portion } of { TAIL ~ the atmosphere } within the chamber 54 can be purged from the chamber 54 , and an atmosphere having a lower moisture content can be introduced into the chamber 54
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 OTH OTH OTH OTH OTH