延长定型时间有利于高弹形变的松弛，降低内应力，有利于降低干热收缩。
Prolonging the heat-setting time to provide enough relaxation time for high elastic strain, which can also reduce the inner stress and the dry heat-shrinkage.
延长定型时间有利于高弹形变的松弛，降低内应力，有利于降低干热收缩。
Prolonging the heat-setting time to provide enough relaxation time for high elastic strain, which can also reduce the inner stress and the dry heat-shrinkage.
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