a + chemical group
化学基团通常可以独立存在或作为分子的一部分。
A hydroxyl is a chemical group consisting of one oxygen and one hydrogen atom.
羟基是一种由一个氧原子和一个氢原子组成的化学基团。
化学基团
先理解核心含义,再看它在真实句子里的用法。
化学基团
A group of atoms that behaves as a single entity in chemical compounds.
A hydroxyl is a chemical group consisting of one oxygen and one hydrogen atom.
羟基是一种由一个氧原子和一个氢原子组成的化学基团。
The hydroxyl is a common chemical group found in alcohols.
羟基是醇中常见的一种化学基团。
Different chemical groups can change the properties of a molecule.
不同的化学基团可以改变分子的性质。
This reaction attaches a new chemical group to the ring.
这个反应在环上附着了一个新的化学基团。
化学基团通常可以独立存在或作为分子的一部分。
A hydroxyl is a chemical group consisting of one oxygen and one hydrogen atom.
羟基是一种由一个氧原子和一个氢原子组成的化学基团。
The chemical group of the molecule determines its reactivity.
该分子的化学基团决定了其反应性。
复数形式常用于描述多种基团。
Different chemical groups can be attached to the carbon backbone.
不同的化学基团可以连接到碳骨架上。
Not this
This molecule contains a hydroxyl chemical group.
Use this
This molecule contains a hydroxyl functional group.
错误地将'chemical group'用于指代具体的官能团(如羟基),正确的术语应为'functional group'。在有机化学中,特定结构的基团用'functional group'表示。
Not this
Water is a chemical group.
Use this
Water is a chemical compound.
混淆了'chemical group'和'chemical compound'。'Chemical group'指分子中的原子团,如羟基、羧基;而'chemical compound'指由不同元素组成的纯物质。
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