According with the authors the usage of such "green" systems allow to improve the health of their users, the microclimate inside the house and the ecological environment on the planet as a whole.
Mechanical engineers aren't particularly interested in making lighter units. Instead, they're focusing on developing more ecological air-conditioning systems.
机械工程师们没有特别的兴趣去制作更轻的空调器，与之相对的，他们正在致力于开发更环保节能的空调系统。
3
The three-year program is built on a foundation year that explores environments and ecologicalsystems and their relationship to architecture.