We wanted to reduce the cost of heating and air-conditioning.

我们想减少供暖与空调的开支。

《柯林斯英汉双解大词典》

The use of office air-conditioning should follow guidebooks.

应遵循指南来使用办公室的空调。

youdao

Most of the trains don't have air conditioning at all.

大多数火车根本没有空调。

youdao

Loss of air conditioning creates big problems, this proven in the great Midwestern heatwave of 1995 (when the heat index reached a deadly 136 in southern Wisconsin).

FORBES: When Mr. Heat Comes To Washington

The same is true of heating and air conditioning repair, where a year or more of vocational training is usually required.

FORBES: The Ten Best-Paying Blue-Collar Jobs

One wonders how Doug Von Allmen, who began life in poverty, working as a window washer and factory grunt, became a man intolerant of any "creaking" on his yacht, irritated by the slightest whooshing of the air-conditioning system and concerned with the placement of gold-plated toilet-paper dispensers.

WSJ: Book Review: Grand Ambition