常見(jiàn)例句用作名詞 (n.)Allene is an isomer of methyl acetylene.丙二烯是甲基乙炔的一種異搆躰。These gauges are designed for measuring the pressure of medium acetylene.該壓力表適用於測(cè)量乙炔介質(zhì)的壓力。 返回 acetylene