名词
甲烷;沼气
Fluorinated methanes for industrial uses-Determination of micro-amounts of water-Electrolytic method
工业用氟代甲烷类中微量水分的测定电解法
Liquid chlorinated methanes for industrial use--Determination of colour (platinum-cobalt scale)
工业液体氯代甲烷色度(铂-钴标度)的测定
Liquid chlorinated methanes for industrial use--Determination of density (hydrometer method)
工业液体氯代甲烷密度的测定密度计法
Liquid chlorinated methanes for industrial use-Determination of acidity-titrimetry
工业液体氯代甲烷类产品中酸度的测定滴定法
-methanes的不同词性形态
例句
|noun|
1.A colourless, odourless flammable gas which is the main constituent of natural gas. It is the simplest member of the alkane series of hydrocarbons.
‘Food waste is turned into hydrogen, _methane_ and carbon monoxide by the heat of the exhaust.’
‘Natural gas is mostly _methane_ with small quantities of ethane and other gases mixed in.’
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