acetylidene

例句：

1. 1. The reaction ofacetylidene with water produces acetic acid.
   乙酰基与水反应产生乙酸。
2. 2. This compound is used inthe synthesis of acetylidene.
   这种化合物用于合成乙酰基。
3. 3. Acetylidene is a key intermediate inthe production of plastics.
   乙酰基是生产塑料的关键中间体。