长期节能是医院的目标。

Hospitals. 1980 Oct 16;54(20):141-4.

Using cost/benefit analysis, this hospital has implemented a variety of cost-effective energy conservation projects and is looking into long-term programs for the future.

通过成本效益分析，这家医院已经实施了各种具有成本效益的节能项目，并正在研究未来的长期计划。