热空气膨胀，冷空气收缩。
经（NG）改性的聚酯薄膜在热空气中的热收缩率超过35 % ；
Polyester film modified with NG had a shrinkability of more than 35% after the treatment in hot air.
经（NG）改性的聚酯薄膜在热空气中的热收缩率超过35 % ；
Polyester film modified with NG had a shrinkability of more than 35% after the treatment in hot air.
应用推荐