To protect the art, some are putting in new air-conditioning systems.
为了保护艺术品，有些博物馆安装了新的空调系统。
It can save a lot of energy to preheat air in air-conditioning systems.
在空调系统中对空气进行预热，可以节约大量的能源。
In recent years there are many central air conditioning systems running in our country.
近几年，我国有许多大型舒适性中央空调系统投入运行。
In recent years there are many central air conditioning systems running in our country.
近几年，我国有许多大型舒适性中央空调系统投入运行。
应用推荐