单词：acetylenes
(acetylene 的复数) n. 乙炔, 电石气
[化] 乙炔; 双亚乙基
[化] 乙炔; 双亚乙基
plural of acetylene
n. a colorless flammable gas used chiefly in welding and in organic synthesis
n. a colorless flammable gas used chiefly in welding and in organic synthesis