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acetylene [noun]
乙炔常作为名词修饰语，构成复合名词，表示与乙炔相关的物品或设备。
acetylene torch
乙炔焊枪
乙炔
先理解核心含义，再看它在真实句子里的用法。
乙炔
Ethyne (HC≡CH); a colorless, extremely flammable gas used especially in welding and in organic synthesis.
acetylene torch
乙炔焊枪
Any organic compound having one or more carbon–carbon triple bonds; an alkyne.
一种无色易燃气体,主要用于焊接和有机合成
a colorless flammable gas used chiefly in welding and in organic synthesis
乙炔；最简单的炔烃,化学式HC≡CH的碳氢化合物。无色无味、极易燃易爆的气体,旧时用作照明气,现用于焊接和冶金。
Ethyne; the simplest alkyne, a hydrocarbon of formula HC≡CH. It is a colourless, odourless, extremely flammable, explosive gas, formerly used as an illuminating gas, but now used in welding and metallurgy.
以乙炔为燃料的灯,尤指机动车前灯。
A lamp powered by acetylene, particularly a motor vehicle headlight.
Acetylene is commonly used in welding torches because it burns at a very high temperature.
乙炔常用于焊接炬中，因为它能在很高温度下燃烧。
The lab stored acetylene in a special cylinder to prevent any accidental explosion.
实验室将乙炔储存在特殊的气瓶中，以防止意外爆炸。
When acetylene combines with oxygen, the flame can cut through thick metal plates.
当乙炔与氧气结合时，火焰可以切割厚金属板。
乙炔常作为名词修饰语，构成复合名词，表示与乙炔相关的物品或设备。
acetylene torch
乙炔焊枪
乙炔常作为及物动词的宾语，与use, produce, store等动词搭配。
Welders use acetylene.
焊工使用乙炔。
Acetylene is highly flammable.
乙炔高度易燃。
Not this
I need to buy an acetylene for the torch.
Use this
I need to buy acetylene for the torch.
Acetylene 是不可数名词，不能使用不定冠词 'an'。
Not this
They acetylene the pipes to join them.
Use this
They use acetylene to weld the pipes.
Acetylene 是名词，不能作为动词使用。
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Dictionary facts from ECDICT, WIKTIONARY.