jpdb beta

selective breeding

improved version; variant (of a pathogen)

improved version; revised edition; refinement

point(s) for improvement

soil amelioration; soil improvement

reformism

improved product

improved strain; improved breed

land improvement

improvement work (construction); betterment

racial eugenics

ground reinforcement; soil stabilization; foundation improvement

Enhanced Fujita scale (of tornado intensity); EF-scale

utopian

reform of the Japanese script

National Livestock Breeding Center; NLBC