天然气低毒性描述的中英文对照? 天然气为烃类 混合物 质,是无色、无臭气体,属低等毒性物质,主要成分为 甲烷 。 空气 中甲烷浓度过高能使人窒息,当空气中甲烷达到 25% ~ 30% 时,可引起头痛、头晕、乏力、注意力不集中、呼吸和心跳加速、精细动作故障等。 Natural gas is a mixture material of hydro carbons, and is a colorless and odorless gas. It belongs to low-toxic materials, and the main component is methane. Higher concentration of methane in the air will cause suffocation. When the content of methane up to 25%-30% in the air, it will cause headache, dizziness, fatigue, lack of concentration, breathing and heart beating faster as well as fine movement failure. 查看更多0个回答 . 2人已关注