"Addition reaction" 是一个化学术语，通常用于描述在化学反应中，两个或更多的分子结合形成一个新的分子的过程。这个过程可以是分子间的反应，也可以是分子内的反应。
以下是一篇关于添加反应的英文范文，供您参考：
Title: Addition Reaction: A Key Process in Chemical Reactions
Addition reactions are a crucial aspect of chemical reactions, where two or more molecules combine to form a new compound. This process can occur between different molecules or within a single molecule, resulting in various types of addition reactions, including condensation, polymerization, and carbonylation.
Addition reactions are commonly observed in organic chemistry, where carbon-based compounds undergo various transformations. These reactions often involve the transfer of hydrogen or halogens, resulting in the formation of new bonds and structures.
One example of an addition reaction is the polymerization of monomers to form polymers, which are long chains of molecules. In this process, individual monomers combine with other monomers and/or with a catalyst to form a larger molecule, resulting in a highly structured material with unique properties.
Another example is the addition of hydrogen atoms to form hydrides, which is commonly observed in the reduction reactions of metals. This process involves the transfer of electrons from one molecule or atom to another, resulting in the formation of new chemical bonds and the reduction of the reactants.
Addition reactions are crucial in many industrial processes, including the production of polymers, fuels, and pharmaceuticals. Understanding the mechanisms and conditions that promote addition reactions is essential for developing efficient and sustainable chemical processes.
总之，addition reaction是一个重要的化学术语，在许多化学反应中都起着关键作用。
addition reaction是指加成反应，是一种有机化学反应，指有机分子中不饱和碳原子与其他原子或原子团直接结合，在生成物里，原来的不饱和碳原子形成了新的化学键而变成较稳定的化合物。
addition reaction是指化学反应的一种，指两个或更多的分子结合成为一个个分子集团的反应。
关于addition reaction的英文范文最新变化，暂时无法提供，建议查阅专业英语资料或网站。