The kinds of feed and levels of enzyme are dynamic variation related with nutrient value of enzyme.

酶制剂的营养价值随饲料种类与酶的添加水平变化呈动态关系。

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Integrating with dynamic function, the hydrodynamic inducement of sediment suspension and a conceptual model for nutrient release from sediment in large shallow lake were suggested.

结合水动力作用，提出了大型浅水湖泊水动力作用导致底泥悬浮，从而使得底泥中的可溶性营养物质释放这一内源释放的概念性模式。

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Characteristics of nutrient absorption of cotton variety with early—maturity was stu died and the dynamic equation of the nutrient absorption and accumulation in the whole season was suggested.

本文研究了棉花早熟品种的吸收养分特点，提出了一生吸收积累养分动态方程；

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