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瓦斯的主要成分是什么?

添加時間 : 2018-03-14 15:44:00

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主要成分甲烷化學式：CH4
是一種可燃性氣體，無色五味，難溶于水，密度小于空氣，與氧氣或空氣混合后達到一定溫度在一定空間內容易發(fā)生爆炸

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