maintainable root

例句：

1. 1.The new building is designed to be maintainable and energy-efficient.
   这座新建筑设计得既可维持又节能。
2. 2. The project was deemed maintainable by the experts.
   专家们认为这个项目是可维持的。
3. 3.The company's policy on maintaining equipment is well-established.
   公司关于维护设备的政策已经建立得很完善。