balance of fuel

例句：

1. 1. Thecar's engine needs to be balancedfor optimal performance.
   汽车引擎需要平衡以获得最佳性能。
2. 2. The engineer carefully balanced theweight of the new machine before testing it.
   工程师在测试新机器之前仔细平衡了机器的重量。
3. 3. The balance of fuel consumptionbetween the two cars is crucial for efficiency.
   两辆车之间的燃料消耗平衡对于效率至关重要。