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.
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 team produces three cubic metres of methane a day and 50 litres of the liquid nutrient a week.
这个小组每天生产三立方米甲烷气，每周得到50升液体营养物。
The research team based their calculations on a process using the bacterium Cyanobacteria hydrolysate as a nutrient and energy source for growing muscle cells.
该研究团队只是计算了他们使用蓝细菌水解物作为肌肉细胞生长时所需要的营养和热量而已。
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。
When nutrients are used over and over in the environment, we call that a 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。
Aeroponics, a technique in which plants are suspended and the roots misted with a nutrient solution, is another method for growing plants without soil.
空气培植法是一种将植物悬挂起来、并将根部浸泡在营养液中的技术，是另一种不需要土壤就能种植植物的方法。
As the ocean warms, a body of water called the Antarctic Polar Front—an upward movement of the nutrient-rich sea that supports a huge abundance of marine life—is being pushed further south.
随着海洋变暖，一个被称为南极极锋的水体——一个支持大量海洋生物生存的营养丰富的海水上升运动——正被进一步推向南方。
Nutrient-rich water is brought to the wetlands during each high tide, making a high rate of food production possible.
在每次涨潮时，富含营养的水被带到湿地，使高粮食产量有可能实现。
Because the oil is used as a reserve nutrient—like fat—diatoms have evolved no mechanism to secrete it.
由于油的作用是营养储备——就象脂肪似的——所以硅藻没有进化出分泌油份的机制。
Lastly, eggs contain a high nutrient value yet inexpensive compared to other foods.
最后，鸡蛋含有比其他食物还便宜一些的高营养价值。
One cup of avocado has 23% of the Daily Value for folate, a nutrient important for heart health.
一杯鳄梨汁就已经有每日所需的对心脏健康非常重要的营养素—叶酸的23％。
This receptor was previously thought to be a simple nutrient transporter, despite being found in even the furthermost reaches of the intestine, where most nutrients would already have been absorbed.
这个受体先前被认为是一个简单的营养转运体，但是它被发现甚至远在肠道内也存在，在那里大多数营养都已经被吸收了。
It's important to eat produce of various colors because each fruit or vegetable offers a different nutrient - think of it as nutritional cross-training.
吃各种颜色食物是很重要的，因为每种水果或蔬菜提供的营养不同——把这当成营养的交叉训练。
Protein was discovered in 1839. At that time it was considered to be a very important nutrient.
蛋白质是1839年被发现的，它在当时被视为非常重要的营养素。
Low oxygen levels encourage the growth of bacteria that destroy nitrate - a vital nutrient for the ocean's microscopic plants, or phytoplankton.
低含氧量导致细菌滋长，这些细菌会破坏硝酸盐——海洋微生物及浮游植物的重要营养物质之一。
The growth of plankton in the sea is always limited by something. It may be light, or a familiar nutrient such as nitrate or phosphate.
海洋浮游藻类的生长总是受到一些东西的限制，这些东西可能是光，也可能是相似的营养物质比如硝酸盐或者磷酸盐。
It is particularly important that pregnant women receive enough iodine in their diet, as iodine is a key nutrient in the fetal development process, especially with respect to the brain.
由于碘是胎儿发育过程、尤其是脑发育过程的主要营养素，特别重要的是孕妇在其饮食中获得足够的碘。
The third study examined a specific nutrient, a sugar called fructose that is abundant in fruit.
第三个研究了一种具体营养物，一种在水果中富含的果糖。
As a result, diseases caused by nutrient deficiency are rare in the United States.
因此在美国由营养缺乏引起的疾病很少。
A micronutrient is any nutrient that our bodies also need to function properly, but in much smaller quantities.
这类营养素对维持身体正常功能也必不可少，但相比之下需要量少得多。
At best, they contain nutrients, such as phosphorus, which gave our nutrient-poor ancestors a little more energy.
他们充其量就包含一些营养元素，曾给我们营养不良的祖先们增添过一些能量，如磷。
The definition of a "nutrient" is a substance that is required for our bodies to properly function.
维持身体正常功能所需的物质，这是“营养素”的定义。
Along with nitrogen and iron, phosphorous is a key limiting nutrient in the ocean.
磷和氮、铁都是海洋有限的重要营养元素。
The first type of nutrient is called a “macronutrient”, which refers to any nutrient that our body needs in large quantities in order to stay alive.
第一种类型“常量营养素”是指为维持生命，我们要大量消耗的营养素。
The first type of nutrient is called a “macronutrient”, which refers to any nutrient that our body needs in large quantities in order to stay alive.
第一种类型“常量营养素”是指为维持生命，我们要大量消耗的营养素。
应用推荐