n.[化]乙炔；電石氣
Allene is an isomer of methyl acetylene. 丙二烯是甲基乙炔的一種異構(gòu)體。
These gauges are designed for measuring the pressure of medium acetylene. 該壓力表適用于測量乙炔介質(zhì)的壓力。
氧乙炔氣
adj.氧乙炔的
炔烴
