(1)豊かで継続的で青々と茂る成長もたらす特性
(2)the property of producing abundantly and sustaining vigorous and luxuriant growth; "he praised the richness of the soil"; "weeds lovely in their rankness"
さらに詳しく
(1)大量生産に有効な、または貢献する
(2)大きな有効性で特徴付けられる
(3)とても生産的な
(4)very productive; "rich seams of coal"
