mature technology
成熟技術、枯れた技術
Business cycle
Technology lifecycle
Technology readiness level
/suto3/google.iconmature technology
/suto3/Google画像検索.iconmature technology
/suto3/Google定義検索.icon mature technology
/suto3/wikipedia.iconmature technology
/suto3/weblio.icon mature technology
/suto3/kotobank.icon mature technology
/suto3/jisho.icon mature technology