Zhèxiē jiù shèbèi hái kěyǐ liúyòng yí duàn shíjiān.
These old machines can still be kept in use for a while.
Tips
usage
Most often used in HR / management contexts: keeping a probationary employee, retaining staff after a merger, or holding onto equipment past its expected service life. 留 'keep' + 用 'use' = 'keep for continued use.'
