Strategy 2: Efficient products Factor Four's proposed efficiency revolution, which calls for "halving resources and doubling efficiency," has become a key tenet of sustainable manufacturing.
策略二：「高效率」優先「資源減半、效率加倍」的四倍數「效率革命」，是近年各國永續生產的重要策略，也是值得消費者參考的要素。