Polyether ketone ketone (pekk)
[化] 聚醚酮酮
🧩 词语组成解析
n. [化]聚醚,多醚
ketone
['ki:toʊn]
n. 酮;
ketone
['ki:toʊn]
n. 酮;
🗣️ 情景例句
How are you?
你好吗？
All time is no time when it is past.
光阴一去不复返。
thank for coming today.
谢谢您今天的莅临。