The use of cryogen vapor in the blowing gas hastens cooling and {HEAD ~ solidification} of {TAIL ~ newly formed glass articles} so that the time during which the articles must be retained in their molds is significantly reduced 
of
The use of cryogen vapor in the blowing gas hastens cooling and { HEAD ~ solidification } of { TAIL ~ newly formed glass articles } so that the time during which the articles must be retained in their molds is significantly reduced
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