acetal and ketal的用法和樣例：
例句
- During the test run of 2000 h,the conversion of acetal and the yield of ethyl vinyl ether maintained about 96.
研究了在固體催化劑上乙縮醛氣相分解制乙烯基乙醚的反應性能。 - In addition to nylon, the unit polymerizes and compounds PBT, acetal, thermoplastic vulcanizates and other specialty resins.
除了尼龍，單位和化合物聚合樹脂，縮醛，熱塑性硫化膠以及其他特殊樹脂。
