“乙炔”造句
2024年02月17日 09:23:11
不完全的燃燒和不適當(dāng)?shù)耐L(fēng)條件能導(dǎo)致
乙炔的產(chǎn)生.
Incomplete combustion and improper draft conditions can cause ethylene formation.
已多次證實火焰中存在聚
乙炔.
That polyacetylenes are present in flames has been demonstrated many times.
這種反應(yīng)構(gòu)成了制備芳基環(huán)丙基
乙炔的有效方法.
This sequence constitutes an efficient method for preparing arylcyclopropylacetylenes.