methyl + noun
methyl 常作定语修饰名词,构成化合物名称,如 methyl alcohol、methyl chloride。
Methyl chloride is a common reagent in organic chemistry.
甲基氯是有机化学中的一种常见试剂。
甲基
methyls — plural of methyl
先理解核心含义,再看它在真实句子里的用法。
甲基
the univalent radical CH3- derived from methane
Methyl chloride is a common reagent in organic chemistry.
甲基氯是有机化学中的一种常见试剂。
甲基,一种单价烃基(CH3-),形式上由甲烷失去一个氢原子衍生而来;指含有此类基团的化合物或其部分。
The univalent hydrocarbon radical, CH3-, formally derived from methane by the loss of a hydrogen atom; a compound or part of a compound formed by the attachment of such a radical.
The chemist explained that methyl is the group that makes this compound reactive.
化学家解释说,使这种化合物具有反应活性的是甲基。
In this reaction, two methyls join the carbon chain at different positions.
在这个反应中,两个甲基在不同的位置连接到碳链上。
The student's model shows a methyl placed on the third carbon atom.
这个学生的模型展示了位于第三个碳原子上的一个甲基。
methyl 常作定语修饰名词,构成化合物名称,如 methyl alcohol、methyl chloride。
Methyl chloride is a common reagent in organic chemistry.
甲基氯是有机化学中的一种常见试剂。
在化学语境中,methyl 可作可数名词,复数形式为 methyls,指多个甲基(基团)。
The molecule contains two methyls attached to the ring.
该分子含有两个连接在环上的甲基。
Not this
Methyl is a gas.
Use this
Methane is a gas.
甲基(methyl)指CH3-一价基团,不是一种可存在的独立气体;表示天然气的主要成分CH4时,应使用甲烷(methane)。用词混淆是因为两者中文中都含“甲”且都来自“meth-”词根,但具体所指不同。
Not this
Methyl is used as a fuel.
Use this
Methanol is used as a fuel.
甲基(methyl)是基团,不是可燃烧的化合物;燃料或工业酒精是甲醇(methanol,CH3OH)。此处应使用甲醇,以避免把基团与具体物质混为一谈。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
甲基(基团)
The methyl group has the formula CH3.
甲基的化学式为CH3。
甲醇
Methyl alcohol is a flammable liquid.
甲醇是一种易燃液体。
溴甲烷;甲基溴
Methyl bromide was once used to fumigate soil.
溴甲烷曾被用来熏蒸土壤。
甲基汞
Methyl mercury can build up in fish.
甲基汞会在鱼类体内累积。
甲基橙
Methyl orange turns red in acid.
甲基橙在酸中变红。
甲基丙烯酸甲酯
Methyl methacrylate is used to produce acrylic plastics.
甲基丙烯酸甲酯用于生产丙烯酸系塑料。
Use methyls naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆:methyl 像 methane(甲烷)少一个氢,留下的一价基团就是甲基。
语域:formal 常见场景:化学实验室、科学文献 甲基是化学术语,通常用于学术或专业语境,日常口语中很少出现。
True rhyme: ethyl /ˈeθɪl/ (matching stressed vowel and final /θɪl/). The meth- words (methane, methanol, method) share the opening spelling and sound with methyl but have different endings, so they do not rhyme. Ethyl is sometimes pronounced /ˈiːθaɪl/ in various contexts, so be aware of regional or register differences.
Dictionary facts from ECDICT, WIKTIONARY.