“birth rate”的意思、由来-百科全书

词条	birth rate
释义	birth rate frequency of live births in a given population, conventionally calculated as the annual number of live births per 1,000 inhabitants. See vital rates.
随便看	polymyxin Polynesian culture Polynesian languages polynya polyolefin polyomavirus polyp Polyphemus polyphonic prose polyphony polyploidy Polypodiaceae Polyporales polyptoton polyrhythm polysaccharide polystyrene polysulfide polysulfone Polytechnical Museum polytetrafluoroethylene polytheism polytonality polyurethane polyvinyl acetate

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