gōngchǎng / bìxū / tuǒshàn / chǔlǐ / shēngchǎnguòchéng / zhōng / chǎnshēng / de / fèizhā

工厂必须妥善处理生产过程中产生的废渣。

Factories must properly dispose of the waste residue generated during the production process.