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
acetylenes — plural of acetylene
炔烃；乙炔灯；一种无色易燃气体,主要用于焊接和有机合成；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。；以乙炔为燃料的灯,尤指机动车前灯。
Ethyne (HC≡CH); a colorless, extremely flammable gas used especially in welding and in organic synthesis.
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。
用法提示：作主语，指代气体，用于说明其用途。
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。
用法提示：作宾语，表示储存的对象。
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。
用法提示：作主语，在时间状语从句中描述化学反应。
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。
化学名称，与acetylene完全同义，但多用于专业文献。
俗称，指由电石与水反应生成的乙炔，口语中常用。
grammar · medium
易错句子I need to buy an acetylene for the torch.
正确表达I need to buy acetylene for the torch.
Acetylene 是不可数名词，不能使用不定冠词 'an'。
grammar · medium
易错句子They acetylene the pipes to join them.
正确表达They use acetylene to weld the pipes.
Acetylene 是名词，不能作为动词使用。
二者均为气态烃，但乙炔含三键用于焊接，乙烯含双键用于催熟水果。
Choose the next layer that will help you use acetylenes with more confidence.
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