On land, the supportive buoyancy of water is missing, the plant is no longer bathed in a nutrient solution, and air tends to dry things out.
在陆地上,水的浮力支持消失了,植物不再浸泡在营养液中,空气会使植物变干。
A recent policy discussion in the journal Science compared the nutrient balances of different agriculture systems.
VOA: special.2009.07.28
And then, you can look at the nutrient broken down as a function of the percent daily values.
下面是各种营养成分的含量,及其所占每日建议摄取量的百分比
And so the food is a broader constituent of what we consume; the nutrient will be the pieces of the food that affect bodily function.
所以食物的概念要比吃的东西更加广泛,食物中的营养素影响着我们的人体机能
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