名词乙炔
\u0064\u0061\u006E\u0063\u0069\u002E\u0039\u0031\u0031\u0063\u0068\u0061\u002E\u0063\u006F\u006D
noun
1. ethyne什么意思
1. a colorless flammable gas used chiefly in welding and in organic synthesis
Synonym: acetylene alkyne