你说了，氮循环也是一个重要的营养循环。
You said that the nitrogen cycle is also an important nutrient cycle.
当营养物质在环境中被反复使用时，我们称之为营养循环。
When nutrients are used over and over in the environment, we call that a nutrient cycle.
由于养分的重要性和贫乏性，营养循环是我们在这门课中会讲到的最重要的生态系统过程之一。
Because of the importance of nutrients and their scarcity, nutrient recycling is one of the most significant eco-system processes that we'll cover in this course.
这三种最重要的营养循环包括氮循环、碳循环和我们今天要讲的磷循环。
The three most important nutrient recycles are the nitrogen cycle, the carbon cycle and the one we are going to talk about today, the Phosphorus cycle.
在具有抑制剂的恒化器竞争模型中考虑时滞营养循环的作用，得到系统有界的充分条件。
The delay nutrient recycling is considered in the models of competition in a chemostat with an external inhibitor, the sufficient conditions of bounded in the system is obtained.
结果表明，不同种植密度下林分的营养循环表现出了一定的差异性，而养分的利用效率则一样。
The results showed: the nutrient cycling was different among the different planting density of C. cajan, but the efficiency of nutrient utilization was same among the different planting densities .
海岛恢复的长期利益包括重建海岛的生物群落，再现海岛生态系统的营养循环，恢复海岛的进化过程。
The long term benefits of island restoration include re_colonization of biological community, re_establishment of ecosystem matter cycle, and revolution of island.
在完全黑暗的条件下，根本无法进行光合作用，但绝大多数光养生物都通过依赖混合营养体的营养循环生存了下来。
No photosynthesis could take place under the complete darkness, but the phototrophs mostly managed to survive based on nutrients cycled by the active mixotrophs.
生态学家对磷循环进行了大量研究，因为如我所说，磷是一种重要而不充足的营养物质。
The Phosphorus cycle has been studied a lot by ecologists because like I said, Phosphorus is an important nutrient and it's not so abundant.
通过使用类似这工具来获取骨髓这种动物躯体中最有营养的部分，他们开始培养起一个古老的良性循环。
Using tools like this one to obtain bone marrow, the most nutritious part of a carcass, they set in train an ancient virtuous circle.
这组科学家说，气候变化可能影响内陆湖泊的温度、珊瑚礁的健康以及海洋营养的循环。
Climate change can affect the temperature of inland lakes, the health of reefs and how nutrients circulate in the oceans, the researchers say.
农用化工产品破坏了原始生态系统赖以生存的营养更新的自然循环。
Agrochemicals had destroyed the natural cycles of nutrient renewal that intact ecosystems use to maintain themselves.
我们吃喝的东西都被消化系统分解，然后营养物质和葡萄糖被释放出来通过薄膜过滤进入到血液循环中，接着再以不同形式进入到细胞中。
What we eat and drink is broken down by the digestive system; nutrients and glucose are released and then filtered through membranes into the bloodstream before entering the cells in various forms.
可是，如果海面水温较高(例如在厄尔尼诺期间)，深层海水就无法上流，从而大大阻断了这些生命必须营养的正常循环。
However, when surface waters are warm (as during an el ni? O), they do not allow the colder, deeper currents to upwell and effectively block the flow of life-sustaining nutrients.
营养不良的后果是“这样一个恶性循环：贫困会导致营养不良，而营养不良又会致使贫困长期存在，”世行人类发展局副行长TamarManuelyanAtinc说。
The result is a “vicious cycle where poverty causes malnutrition, and malnutrition perpetuates poverty, “says Tamar Manuelyan Atinc, vice president of the World Bank’s Human Development Network.
适当的循环帮助血液把营养物质输送到全身各个部分，排除毒素，提高身体每个器官的功能。
Proper circulation helps blood move nutrients throughout your body, eliminates toxins, and improves the function of almost every organ system throughout your body.
当我们所吃的符合身体的自然消化循环时，我们能够更加有效率地吸收和处理营养物，以及完全排除食物残骸和毒物。
When eating in accordance to our body's natural digestive cycle, we are able to more efficiently absorb and process nutrients, and fully eliminate food debris and toxins.
不过，营养液是不能循环使用的，只能用一次。
However, the nutrient solution is not circulated but used only once.
没有被植物吸收的营养物质和水可以被循环利用，而不是流失到土壤中。
Any nutrients and water that are not taken up by the roots can be recycled, rather than being lost into the soil.
从人体的表皮细胞，营养物质进入血管，骨骼和器官然后再循环，以此在治疗，增进和加强身体的健康方面起到它的重要作用。
From the skin cells, the nutrient enters the bloodstream and circulates to bones and organs, doing its important work of healing, building and fortifying.
在温暖海域，深海里的营养物质难以循环至海面，会导致总体生物生产力的下降。
In warmer oceans nutrients in deeper water will be less easily recycled to the surface, which may lead to lower biological productivity overall.
其方法是：把作物固定在无土水槽里扎根，溶解在水里的营养液在根系周围循环。
Plants are held in place so their roots lie in soilless troughs, and water with dissolved nutrients is circulated over them.
严重的腿部和脚步感染，甚至坏疽和截肢，这都是由于血液循环不良，肌肉缺少氧气和营养，神经损伤导致的。
Serious leg and foot infections, even gangrene and amputation, are due to poor blood circulation, lack of oxygen and nutrients to tissue, and nerve damage.
在血管内改善一定循环功能，令组织的增加营养量。
Between the bloods improving the general circulation, increases nutrition of the tissues.
从1965年到1980年代早期，苏联的公共健康统计是一条明显的下降曲线，死于循环系统疾病(由于营养不足、吸烟和饮酒)的人数不断增长。
Soviet public-health statistics show a clear decline from 1965 to the early 1980s, with rising deaths from circulatory diseases (because of poor diet, smoking and, especially, drinking).
促进氧在血液中的循环，及时为你补充消耗的营养物质。
It can promote the circulation of the oxygen in the blood, and timely supplement the consumed nutrient substances.
研究设计。探讨在体外培养受到循环的机械牵张力作用的大鼠脊髓细胞神经营养因子和受体基因表达的实验研究。
Study Design. An experimental study to investigate the in vitro gene expression of neurotrophic factors and receptors in cultured rat spinal cord cells subjected to cyclic mechanical stretch forces.
研究设计。探讨在体外培养受到循环的机械牵张力作用的大鼠脊髓细胞神经营养因子和受体基因表达的实验研究。
Study Design. An experimental study to investigate the in vitro gene expression of neurotrophic factors and receptors in cultured rat spinal cord cells subjected to cyclic mechanical stretch forces.
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