Methane is a colorless, odorless and flammable substance which forms a major component in natural gas.
甲烷是一种无色,无味,易燃物质,是天然气的重要组成部分。
2
Oxygen is the second largest component of the atmosphere, comprising 20.8% by volume. Gaseous oxygen is colorless, odorless, tasteless, and nonflammable.
氧是空气的第二大组成成分,体积占20.8%。气态氧无色,无嗅,无味,不可燃。
3
The colorless, liquid component of the cell nucleus.