“herd structure of grazing livestock”的概念、定义、翻译、参考文献-科学参考

单词	herd structure of grazing livestock
释义	herd structure of grazing livestock Encyclopedia 农学放牧家畜畜群结构释 herd structure of grazing livestock放牧家畜畜群结构在某种放牧家畜群体中，公母畜群各自年龄比例的结构，即畜群总头数中，按性别、年龄和在生产过程中的作用人为划分的组群在整个群体中所占的比重。又称畜组结构、畜群构成。
随便看	principal series representations principal set principal sheet principal solution principal space principal spectrum principal sphere principal sphere of curvature principal square root principals' research leadership principal state model principal state of polarization principal's teaching leadership principal strain principal subgroup principal subgroup series principal submatrix principal submodule principal subspace principal surface principal symbol principal symbol sequence principal system principal tangent principal tangent bundle

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