Thus, {HEAD ~ a preform} contiguously expands within {TAIL ~ the mold interior surface} in response to the pressurized blow air to form the container 
contiguously expands within
Thus , { HEAD ~ a preform } contiguously expands within { TAIL ~ the mold interior surface } in response to the pressurized blow air to form the container
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH