cyclic acetal

例句：

1. 1.This cyclic acetal is a versatile material that can be used in various applications.
   这种循环式缩醛是一种多功能材料，可以用于各种应用。
2. 2. The cyclic acetal was found to have excellent thermal stability.
   这种循环式缩醛被发现具有极好的热稳定性。
3. 3. The cyclic acetal has been used in the production of high-performance plastics.
   这种循环式缩醛已被用于高性能塑料的生产。