gōng / zuò / rén / yuán / bì / xū / bǎ / shuāi / biàn / rè / jí / shí / dài / zǒu / yǐ / fáng / rán / liào / guò / rè

工作人员必须把衰变热及时带走，以防燃料过热。

Workers must remove the decay heat promptly to prevent the fuel from overheating.