... periodic fraction 循环分数 periodic grazing 周期放牧 periodic group 周期类 ...
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短周期放牧 short duration grazing
放牧周期 grazing cycle
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放牧家畜饲养周期长,出栏率低,是制约高寒草甸畜牧业生产的最大瓶颈。
The longer raise period and lower slaughter rate constitute the important limiting factors for livestock production on high frigid meadows.
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