“breeding pyramid”的概念、定义、翻译、参考文献-科学参考

单词	breeding pyramid
释义	breeding pyramid Encyclopedia 农学动物育种释 breeding pyramid育种金字塔由育种群、扩繁群、生产群构成的具有金字塔特点的育种和生产群体结构。
随便看	powder metallurgy mechanical parts powder metallurgy of metal matrix composites powder metallurgy porous materials powder metallurgy refractory metal materials powder-metallurgy sand screen powder metallurgy science powder metallurgy superalloy powder metallurgy superalloys powder metallurgy sweating materials powder metallurgy titanium alloys powder metallurgy titanium aluminide powder method powder mildew of rubber tree powder mold compaction powder packing textiles powder pattern powder preparation by mechanical alloying powder preparation by precursors method powder preparation by self–propagation high–temperature synthesis method powder preparation of crude drugs powder prepared prepreg powder resin precoated filter powder rolling powder rolling forming powders

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