n.[化]乙炔；电石气
Allene is an isomer of methyl acetylene. 丙二烯是甲基乙炔的一种异构体。
These gauges are designed for measuring the pressure of medium acetylene. 该压力表适用于测量乙炔介质的压力。
氧乙炔气
adj.氧乙炔的
炔烃
