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使わない機能 Functions not for use

省エネ大賞受賞技術開発の軌跡 (11)
第1章 もったいない無駄と必要な無駄
1.2高度経済成長・技術成長の落とし穴
1.2.1 機能バブルと無駄の創出
Trajectory of Energy Conservation Grand Prize-winning Technology Development (11)
Chapter 1 Wasteful Waste and Necessary Waste
1.2 Pitfalls of High Economic Growth and Technological Growth
1.2.1 Function bubble and creation of waste