thermosetting sand

例句：

1. 1. The thermosetting resin is used to make furniture.
   这种热固性树脂用于制作家具。
2. 2. The thermoplastic material has excellent flexibility and durability.
   这种热塑性材料具有极好的柔韧性和耐用性。
3. 3.The thermosetting process involves heating the material until it becomes hard and then cooling it.
   热固化过程涉及加热材料直到它变硬，然后冷却它。