通常，当磷元素向新生组织转移时，较老的叶片首先受到了影响。
Typically, older leaves are affected first as the phosphorus is mobilized to young growing tissue.
植物不能离开磷元素而生存。
是磷元素唯一稳定的同位素。
太湖环境问题包括氮磷元素富集带来的富营养化。
The lake's environmental problems include accelerated eutrophication, or aging, caused by nitrogen and phosphorus enrichment.
比较直观的是，用于耕地的化肥输入大量的氮元素和磷元素到环境当中。
More immediately, fertilizers used in farming have injected vast amounts of nitrogen and phosphorus into regional environments.
枯枝落叶的快速分解会引起土壤的氮和磷元素的周期性短缺。
The decomposition of litter can cause the periodic shortage of nitrogen and phosphorus chemical elements.
而从海洋到陆地的磷元素流动几乎停止——仅有历史水平的4%。
And the flow of phosphorus to land has nearly stopped — at just 4 percent of historic levels.
例如，非洲含有磷元素的沙尘可以促进磷元素缺乏的亚马逊地区植被的生长。
African dust is thought, for example, to stimulate plant growth in the Amazon by bringing in phosphorus (which is in short supply there).
用化学物相分析法测定瓮福磷尾矿中钙、镁、磷元素形态含量。
The contents of calcium, magnesium and phosphorus species in Wengfu Phosphorus Tailings were determined by chemical phase analysis method.
磷元素在钢中的晶界偏聚可以分为两类，即平衡偏聚和非平衡偏聚。
The segregation of phosphorus on steel grain boundaries can be divided into two categories, which are, equilibrium segregation and non-equilibrium segregation.
磷元素是陆地植物生长和生态系统净初级生产力的主要限制因子之一。
Phosphorus (p) is one of the main limiting nutrients to the plant growth and net primary productivity (NPP) in terrestrial ecosystem.
摘要：磷元素植物生长必需的矿质元素之一，而土壤中可溶性磷的含量比较低。
Abstract: phosphorus is one of the essential mineral elements to plant growth, however, there is fairly less content of soluble phosphorus in soil.
Mono湖含有大量砷元素的同时也含有大量磷元素，GFAJ-1菌株在提供磷的时候也长得更好。
Mono Lake has a lot of phosphorus as well as arsenic, and the strain grows better when supplied with phosphorus.
结果表明，悬浮浇注能有效地改善轴承钢锭的温度分布，极大地改善钢锭横截面上的碳、硫、磷元素的中心偏析，提高了轴承钢锭的质量。
The results show that suspension casting can make the temperature field uniform, eliminate macro segregation of c, s and p, and improve the quality of bearing steel ingot.
实际上，它们不仅仅使用碳元素作为它们交流的语言，其实还有氮元素和磷元素，这个网络无比密集以至于在你每走过一步脚下的菌丝连起来可以有几百公里长。
Well, it turns out they were conversing not only in the language of carbon but also information. The web is so dense that there can be hundreds of kilometers of mycelium under a single footstep.
但也许是时候更新这份必需元素目录了，因为科学家们发现一种细菌会用砷来代替磷，不需要磷也可生存。
But it might be time to update that list. Because scientists have found a bacterium that can do without phosphorus-live on arsenic instead.
扁豆含有大量的钾，钙和铁元素。 同时，扁豆也是维生素B，磷和铜元素的提供者。
The lentil is high in potassium, calcium and iron, and a good source of B vitamins, phosphorus and copper.
最近发现的一种细菌可以用砷替代磷作为生命组成的基本元素。
A bacterium has been discovered that can substitute arsenic for phosphorus in fundamental life chemistry.
理由是，地球上所有的生物都由六种基本元素构成：碳、氢、氮、氧、磷和硫。
The reason is that all life on Earth is made of six components: Carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur.
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。
At best, they contain nutrients, such as phosphorus, which gave our nutrient-poor ancestors a little more energy.
无机化合物是由诸如硫、磷、铁、钾、钠和钙等元素组成。
Mineral compounds are made of elements such as sulphur, phosphorus, iron, potassium, sodium, and calcium.
最近发现的一种细菌可以用砷替代磷作为生命组成的基本元素。
A bacterium has been discovered that can substitute arsenic for phosphorus in fundamental life chemistry. Christopher Intagliata reports.
据科学家称，月球近地端含有更多的克里普矿物，稀有地球元素钾，还有磷。
The nearside also has much more kreep-potassium, rare-earth elements, and phosphorus-according to scientists.
磷长久以来一直被认为是我们所知道的生命体必需的六种化学元素之一。
Phosphorus is one of six chemical elements that have long been thought to be essential for all Life As We Know It.
在元素周期表中，砷就位于磷的下面，二者具有很多相同的化学性质。
Arsenic sits right beneath phosphorus in the periodic table of the elements and shares many of its chemical properties.
钾、磷、钍是月岩可向将来的采矿企业提供的其它元素。
Potassium, phosphorus and thorium are other elements that lunar rocks have to offer a potential mining venture.
炼金术士们还发现了磷等其他元素。
The alchemists also discovered some elements, such as phosphorous.
炼金术士们还发现了磷等其他元素。
The alchemists also discovered some elements, such as phosphorous.
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