The effects of transgenic Bt cotton on the parasitoid in tri-trophic system involving Sukang 310, Sylepta derogata and Apanteles ruficrus have been investigated.
按照“棉花 -棉大卷叶螟 (Syleptaderogata)幼虫 -螟蛉绒茧蜂 (Apantelesruficrus)”三级营养食物链关系 ,对田间转Bt基因棉苏抗 310对非靶物种螟蛉绒茧蜂种群的影响进行了调查。
Food nourishment utilization efficiency of different month aged sheep;
不同月龄绵羊对食物营养利用效率研究
Global Solutions for the Tritrophic Food-Chain Model with Cross-Diffusion;
三级营养食物链交错扩散模型的整体解
Producer The first TROPHIC LEVEL, in a food chain.
生产者：食物链中第一个营养级。
A group of organisms that occupy the same position in a food chain.
营养层次，营养级在食物链中居于同一地位的一群生物
Food, food chains, food-webs and trophic levels consist of a system, termed the“ food system”.
食物、物链、物网以及由此构成的营养级组成“食物系统”。
"because energy, in the form of heat, is lost at each step, or trophic level, chains do not normally encompass more than four or five trophic levels. "
由于能量以热的形式在每个阶段(或营养级)中都有损失,因此食物链一般不超过四或五个营养级。
balanced diet
(营养)均衡的食物
Analysis of Nutritional Components in Three Edible and Medicinal Plants of Amorphophallus Blume
魔芋属三种食疗植物中的营养成分分析
Discussion on Function of Three Main Nutriment in Athlete s Bite and Sup;
三大营养物质在运动员饮食中的供能作用
The nutrition classes relationship of plant,phytophagous insect and natural enemy
植物、植食昆虫、天敌三个营养层次间的关系
Here's some good food.
这些是有营养的食物。
Our food is nutritious.
我们的食物富有营养。
Ecological Studies on the Food Web Structures and Trophic Relationships of Freshwater Lakes in China Using Stable Carbon and Nitrogen Isotopes;
应用碳、氮稳定性同位素探讨淡水湖泊的食物网结构和营养级关系
Ecological Studies on Food Web Structures and Trophic Relationships of Cave Ecosystem Using Stable Isotopes;
应用稳定性同位素探讨洞穴生态系统食物网结构和营养级关系
The science or study that deals with food and nourishment, especially in human beings.
营养学关于食物和营养，尤指人的食物和营养的科学或研究
Concerned with food, nutrition, or digestion.
饮食的，营养的与食物、营养或消化有关的
A source of nourishment, especially a nourishing ingredient in a food.
营养品，滋养物营养的来源，尤指食物中的营养成分
Difference Analysis of Nutritional Characteristics on Three Kinds of Edible Fungi Mycelium of Different Nutritional Types;
三种不同营养型食用菌菌丝营养特性差异分析
The expression of the nutrient density of a food is presented as the index of nutrient quality (INQ).
食物营养密度的表述被作为营养质量的指数。