营养层次

The interactions of feeds can affect the nutritive value,so the additivity is not always effective.

就日粮中各饲料间的相互作用在消化道与组织代谢层次产生的正、负组合效应及其营养代谢机理进行了综述。

Coleoptera species accounted for the greatest share in phytophagous insects, and spiders were the major natural enemies. The largest proportion of neutral insects was dipteran.

稻田节肢动物中各目、科的种类数量所占比例差异很大，在植食性昆虫中鞘翅目所占比例最大；在天敌中以蜘蛛类最多；在中性昆虫中，以双翅目比例最大；同时在物种、功能集团和营养层3个组织层次水平上分析了稻田节肢动物群落的结构和多样性。

It's normally found at low levels in green leafy vegetables, but can also be taken as an over-the-counter nutritional supplement.

它的发现，通常是在低层次，在绿叶蔬菜，但也可以被看作是过度的柜台营养补充。

Based on the three bottom trawl surveys in adjacent waters of Changjiang estuary in June, August and October 2006, the composition and variation of the functional groups of high trophic level communities in the waters were studied.

通过对2006年6、8和10月在长江口及邻近海域3次调查采集样品的分析，对该水域的高营养层次生物群落的功能群组成及其变化进行了研究。

A photosynthetic green plant or chemosynthetic bacterium, constituting the first trophic level in a food chain; an autotrophic organism.

生产者，自养有机体构成食物链上的第一级营养层次的可进行光合作用的绿色植物或化能合成的细菌；自养有机体

Some overlaps of the δ 13 C values, however, occur among the various mesoplankton size classes, which, in fact, reflects the overlap of organism species.

营养层次随颗粒的增大而升高，这一趋势与 Rau等，Sholto-Douglas等，Fry与Qui ones的结果是完全一致的。

There was enrichment of the heavier isotope of mesoplankton with increasing grain size, showing carbon isotope enrichment along trophic levels.

中型浮游动物随粒径的增大，其δ13C值增大，显示出营养层次的碳同位素富集作用，但不同粒级组分相互间δ13C值也存在着相当程度的重叠，实际上这也是其生物组分有重叠的反映。

In the second part, we investigate the neurotrophy mechanism of qingkailing effective composition antagonizing ischemic injury, and comprehensively analyze the experimental results and come to the conclusions as follows: 1. Qingkailing effective composition can promote the activation of astrocyts during the early period after ischemia.

第二部分采用线栓法大鼠MCAO模型，围绕神经营养因子，从不同家族、同一家族的不同成员、同一成员的因子及其受体三个层次，探讨了清开灵有效组分抗局灶性脑缺血损伤的神经营养机制及效应特征。

The charateristice of this quipment are:fabrication at scene,maintain the freshness and nutrition maximum.Rich in 17 kinds of amino acids,8 essential amino acids human but can not synthesized by ourselves,and more than 11 kinds of vitamins,especially B vitamins that rare in other foods;Besides,brew yellow beer,black beer,green beer,fruit beer,to meet different taste and level of customer.

该设备的特点是：现酿现饮，最大限度的保持了啤酒的天然新鲜度和营养，富含十七种以上的氨基酸，其中含有八种人体必不可少又不能合成的氨基酸，还有十一种以上的维生素，特别是其它食品中少有的B族维生素，并且，酿酒师可以根据客人的不同口味分别配置黄啤、黑啤、绿啤、果啤，以满足不同层次和口味的消费者的需求。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。