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.
砷和磷很像，他记住了这两点，在加上敢于留空的勇气，这就是他给我们的。
Arsenic is like phosphorus. He takes those two facts, plus the courage to leave blanks, and this is what he gives us.
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.
当研究人员将磷去掉，换成砷，这些微生物仍可以继续生长。
When researchers removed the phosphorus and replaced it with arsenic the microbes continued to grow.
因为砷和磷有一些相同的化学特性，研究人员早有预感有这种细菌存在。
The researchers had a hunch a bug like this might exist, because arsenic has some chemical properties in common with phosphorus.
一种细菌在这种情况下继续繁殖，而检测证实这种生命用砷代替了缺乏的磷合成了它们的DNA。
One bacterial strain continued to thrive. And tests confirmed that the organisms compensated for the lack of phosphorus by building their DNA with arsenic instead.
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.
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.
砷破坏了代谢通路，因为在化学性质上它表和磷差不多。
Arsenic disrupts metabolic pathways because chemically it behaves similarly to phosphate.
这就是这种有机体以及一个对它如何在DNA上用砷来替代磷的电脑模拟动画？
Here's the organism and a computer simulation on how it substitutes phosphorus for arsenic in its DNA.
但在NASA太空生物学研究人员Wolfe - Simon的实验室中，这种有机体学会了如何依赖砷而存活，而非磷。
But in the laboratory of Wolfe-Simon, a NASA astrobiology research fellow, the organisms learned to live with arsenic instead of phosphorus.
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.
这个初次登场就惊倒一片生物学家的明星生物就是一种叫GFAJ-1的菌株，据研究者介绍GFAJ-1利用传说中的砒霜所含的砷替换了磷来构建包括DNA在内的生物大分子。
Meet GFAJ-1, a bacterial strain that researchers say can replace the phosphorus in its key biomolecules, including DNA, with the legendary poison arsenic.
因为科学家已经发现了一种不需要磷的细菌，而是用砷作替代物。
Because scientists have found a bacterium that can do without phosphorus-live on arsenic instead.
研究了重掺杂直拉硅单晶中掺杂元素硼、磷、砷、锑对氧沉淀及其诱生二次缺陷行为的影响。
The effect of dopants on oxygen precipitation and induced defects in heavily doped Czochralski (CZ) silicon is investigated.
他认为不仅砷属于在磷下面，我预言还有一个元素，是在铝之上和铟的下边的。
He says not only does arsenic belong under phosphorus, I predict that there is an element that lies below aluminum and above indium.
用椭圆型喷淋吸收塔，氧化剂、碱吸收治理半导体工业废气中砷、磷、硫、氟、氯、氮氧化物及各种酸。
A dual absorbing tower shower containing oxidant and alkaline absorbant was used for removing arsine, phosphorus, sulfur, fluorine, chlorine and oxynitrides.
运用电感耦合等离子体发射光谱法测定铁矿石中的硅，磷，锰，砷，锌该方法简便、快速、准确。
A method for testing trace amounts of Si, p, Mn, As, Zn in iron ore powder by ICP - AES is presented, which is convenient, rapid and accurate.
钙，铁，锰，磷，镉，砷，钠，镁，铝，硅，硫，氯，钾，无机磷酸盐，黄酮。
Calcium, iron, manganese, phosphorus, cadmium, arsenic, sodium, magnesium, aluminum, silicon, sulfur, chlorine, potassium, inorganic phosphate, flavonoids.
黄磷产品中除了主含量磷以外，还含有其他杂质，如：有机杂质、砷、铅、硫等。
In addition to the main content of phosphorus, yellow phosphorus products also contain other impurities, such as organic impurities, arsenic, lead, sulfur and so on.
因为科学家已经发现了一种细菌，可以无需磷生活而以砷代替。
Because scientists have found a bacterium that can do without phosphorus-live on arsenic instead.
型和N型两种硅单晶进行了砷、磷和硼的掺杂，并研究了掺杂区的电和光电特性。
Both P-type and N-type crystalline si have been doped using arsenic, phosphor and boron. The electrical and opto-electrical characteristics of the doping area are investigated.
研究人员也从水中的砷加载湖微生物，只有含有磷点点。
The researchers grew microbes from the lake in water loaded with arsenic, and only containing a little bit of phosphorus.
它可以随任磷或砷。
砷铅矿族矿物是一族六方晶系的类质同象系列矿物，包括砷铅矿、钒铅矿和磷氯铅矿。
Mimetite group minerals are a group of isomorphic series minerals with hexagonal system, which include mimetite, vanadinite and pyromorphite.
分析了在黑钨精矿碱压煮条件下，磷砷渣中钨和污染因子砷的行为。
This paper analyzed the behaviour of tungsten and arsenic contamination factor in phosphorous-arsenic slag under the condition of pressure digestion with NaOH for wolframite concentrate.
分析了在黑钨精矿碱压煮条件下，磷砷渣中钨和污染因子砷的行为。
This paper analyzed the behaviour of tungsten and arsenic contamination factor in phosphorous-arsenic slag under the condition of pressure digestion with NaOH for wolframite concentrate.
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