rest energy

例句：

1. 1. The old car has a lot of rest energy left in its engine.
   这辆旧车发动机里还剩下很多剩余能量。
2. 2. During the long flight, the plane's rest energy is used to maintain altitude.
   在长时间的飞行中，飞机使用剩余能量来维持高度。
3. 3.The team needs to conserve their rest energy for the upcoming match.
   队伍需要保留他们的剩余能量以备即将到来的比赛。