unbalanced heating system

例句：

1. 1. The economy is unbalanced due to the lack of investment in infrastructure.
   由于基础设施投资不足，经济不平衡。
2. 2.The team's performance was unbalanced, with some members performing exceptionally well while others struggled.
   团队的表现不平衡，有些成员表现异常出色，而其他人则表现不佳。
3. 3. The distribution of resources is often unbalanced, favoring certain regions over others.
   资源的分配往往不平衡，某些地区比其他地区得到更多支持。