代换 (dài huàn) — to replace, to substitute

Definition

More technical/written than 换 (huàn) — used in math, science, and formal writing to mean substituting one element for another (variables, ions, parts).

verb

to replaceto substitute

Examples

代换。
Qǐng bǎ zhè ge líng jiàn dài huàn yí xià.
Please replace this part.
，代换。
Zài fāng chéng zhōng, wǒ men kě yǐ yòng biàn liàng dài huàn fǎ jiǎn huà jì suàn.
In equations, we can use variable substitution to simplify calculations.
代换。
Zhè ge fǎn yìng shì tōng guò lí zǐ dài huàn wán chéng de.
This reaction is completed through ion substitution.

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