Xué / xiào / ān / zhuāng / le / jié / diàn / shè / bèi / yǐ / jiǎn / shǎo / měi / tiān / de / yòng / diàn / liàng学校安装了节电设备,以减少每天的用电量。The school installed power-saving equipment to reduce its daily electricity use.