代 (dài) means “to substitute; to act on behalf of others; to replace; generation; dynasty; age; period; (historical) era; (geological) eon”. It is an HSK 3 Chinese character in the HSK 3.0 vocabulary.
这项技术已经更新换代了。
Zhè xiàng jìshù yǐjīng gēngxīn huàndài le.
This technology has been updated and replaced.
Updated: