... nutrient substance ==> 营养物质 nutrient theory ==> 营养理论 nutrient to calorie ratio (NCR) ==> 养分对能量比 ...
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According to the theory of nutrition, "nutrition" and "nutrient" are different concepts.
按照营养学理论“营养”和“营养素”是两个概念。
The technology of soil nutrient map digital mapping has very important significance on theory and application sides for soil nutrient management, digital agriculture and precision agriculture.
开展土壤养分图数字制图技术研究，对于土壤养分科学管理、数字农业、精确农业的实施都具有重要的理论意义和应用价值。
The concept about crop's effective nutrient area was made and using regressive theory, an experiment was conducted.
提出作物有效营养面积新概念，并用回归理论对此进行试验研究。
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