recuperative air preheater

例句：

1. 1. The patient was givena recuperative diet to helphis recovery.
   病人被给予一种有助于他康复的营养餐。
2. 2. The team'sperformance was marked by their recuperative efforts after the game.
   球队在比赛后的努力工作，标志着他们的恢复。
3. 3. Thesurgery was successful, and the patient isnow in a recuperative phase.
   手术成功，患者现在处于康复阶段。