"Sng-sò͘" pán-pún chi-kan bô-kāng--ê tē-hng

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無編輯摘要
無編輯摘要
Tē 18 chōa:
|image alt=
|image size=170
|image name comment=
|image name comment= [[Liquid oxygen]], boiling (oxygen is liquid below ca. −183 °C (−297 °F), at {{abbr|1 atm|atmospheric pressure,101.325 kPa}})
|image name 2=Oxygen spectre.jpg
|image name 2 comment=Spectral lines of oxygen