節(jié)能energy-conserving;energy-saving;energyefficient
～產(chǎn)品論證certification of energy-conserving products/～燈energy-saving lamp/～環(huán)保型汽車energy-efficient and environment-friendly automobile/～技術(shù)energy-efficient technology/～省地型住宅和公共建筑housing and public buildings that use less energy and land |