Polyether ketone ketone (pekk)

[化] 聚醚酮酮

🧩 词语组成解析

polyether
n. [化]聚醚,多醚
ketone ['ki:toʊn]
n. 酮;
ketone ['ki:toʊn]
n. 酮;

🗣️ 情景例句

Is this five-two-one double eight six-four?
这里是521-8864吗?
Why didn't you say so?
为什么不早说?
A colony of bees had turned the engine into a hive and it was totally preserved in beeswax!
一群蜜蜂把发动机当作了蜂房,发动机在蜂蜡中被完整地保存了下来。
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