gōng / chǎng / gǎi / yòng / hé / chéng / xiàng / jiāo / hòu / chǎn / pǐn / de / shǐ / yòng / shòu / mìng / míng / xiǎn / yán / cháng / le

工厂改用合成橡胶后，产品的使用寿命明显延长了。

After the factory switched to synthetic rubber, the products' service life increased significantly.