According to the method, the temperature within {TAIL ~ the chamber} is raised to {HEAD ~ a predetermined level} by energizing the heating elements 
According to the method , the temperature within { TAIL ~ the chamber } is raised to { HEAD ~ a predetermined level } by energizing the heating elements
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH