换代 Traditional form: 換代 Pinyin (reading): huàndài Definitions: to transition to a new dynasty or regime to replace an older product with an upgraded, new-generation one Characters: 换 - to change; to exchange, to swap, to trade 代 - era, generation; to substitute for, to replace Traditional characters: 換 - to change; to exchange, to swap, to trade 代 - era, generation; to substitute for, to replace