High level F in feed and soil was the main pathogenic factor of it.
土壤、饲料高氟是加重钙磷代谢障碍引发跛行的主要因素。
Father told Tom to rake the soil level, but Tom tried to beg off.
父亲叫汤姆把土耙平，但汤姆设法求父亲别叫他干。
It can maintain and increase the level of organic matter in soil.
能维持和提高土壤肥力和有机质含量。
Available zinc in soil was lower than the critical level.
土壤有效锌含量低于临界值。
Water deficit is influenced by the level of soil water potential at the root surface.
水分亏缺是受根系表面土壤水势高低影响的。
Water deficit is influenced by the level of soil water potential at the root surface.
水分亏缺是受根系表面土壤水势高低影响的。
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