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Four new triazol organic phosphorus compounds with the general formula(I) have been prepared.

合成了四标题化合物,讨了其合成方法。

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Hexahydroxy N-containing heterocyclic compound without sulfur and phosphorus was synthesized and its structure was characterized.

合成了无硫、磷的六元含氮杂环化合物添加剂。

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Synthesis of polyethenoxyether phosphate using polyethenoxyether as initiator and using phosphorus pentoxide as parkerizing reagent, and its application were studied.

本文介绍了以聚氧乙烯醚为起始剂,五氧化二磷为磷化剂合成聚氧乙烯醚磷酸酯的过程;并且对其应用也简要地加以说明。

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Surface water is generally coloured and turbid.When total phosphorus is analyzed by luminometer, the monitoring result will be somewhat high.

地面水一般带色且浊,采用光度法分析水样中总磷时,会使测定结

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The optimized conditions for phosphorus recovery as hydroxyapatite from wastewater by synthetic tobermorite through seeded crystallization were studied in this paper.

以合成雪钙石为晶,了用结晶法以磷酸钙形式回收废水中磷的适宜条件。

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On the basis of acetone-phosphomolybdate method to detect phosphorus, the microplate method was developed for the determination of activity units of phytase.

摘要在丙酮法测磷的基础上,在酶活测定时引入微板法。

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The biodegradability of tapioca starch cross linked with phosphorus oxychloride was studied according to the half-vivo model by using micropopulation symbiotic cocultures.

利用微生物群在半生物体内模型中系统研究了三氯氧磷交联淀粉的生物降解性能。

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After they were killed, serum calcium (S Ca), serum phosphorus (S P), serum alkaline phosphatase (S AKP), the levels of estranediol, testosterone a...

表明,中药芪灵液可提雌二醇水平,降低碱性磷酸酶和骨钙素活性,显著提骨密度。

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Jolley(1993)is a study of dissolved phosphorus speciation in the lower molongolo sewage treatment plant(Canberra, Australia)detected no triphosphate in raw sewage entering the plant.

Jolley(1993)进行得一项研究中在溶解磷形态下molongolo污水处理厂(堪培拉,澳大利亚)未发现任何未经处理得污水中有三磷酸盐进入工厂。

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The water eutrophication is caused by the incessant accumulation of nitrogen and phosphorus in water and excessive propagation of a few of algal and hydrobios.

摘要水体中氮磷营养物质不断积累,部分藻类及水生生物的过度繁殖,导致了水体的富营养化。

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In this paper,the relation of heterotrophic bacteria to nitrogen and phosphorus in marine environment is studied by adding nitrogen and phosphorus to the seawater in mesocosm.

利用海洋围隔生态系统实验装置,向海水中施加不同浓度的氮和磷,研究海洋异养细菌与海水环境中氮、磷的关系。

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Coupling agent is used to microencapsulate red phosphorus.The DTA tests, friction sensitivity tests and hygroscopic tests have been used to evaluate the stability of red phosphorus.

选用偶联剂包覆赤磷,进行了DTA试验,吸湿性试验,摩擦感度试验。

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The paper is a study of the rheologic character of phosphate di-starch which is using sodium trimetaphosphate and phosphorus oxycholride as crosslinking agent by rotating viscometer.

研究了以三磷酸钠和磷酰氯为交联剂制成的凝胶淀粉。

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The method has been successfully used to the determination of phosphorus in ferronickel samples.The results compare favourably with determination values of compensating method with reference solution.

方法用于镍铁样品中磷的测定,测定结与参比容液消除法一致。

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Phosphorous Pentoxide(P 2 O 5 ) ?P 2 O 5 is a kind of light white minicrystal powder which is made by burning phosphorus with excess oxygen.

五氧化二磷( P 2 O 5 ) ·五氧化二磷是在过量氧气存在下燃烧元素磷得到的白色、微晶体轻质粉末。

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VOA慢速英语_科技

Glein said there could be enough phosphorus to support life in Enceladus' ocean.

格莱因说,土卫二的海洋中可能有足够的磷来维持生命。

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PBS趣味科普

And it had enough phosphorus to sustain all of this.

它有足够的磷来维持这一切。

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PBS趣味科普

Cells use phosphorus to make membranes, proteins, DNA.

细胞利用磷来制造细胞膜和 DNA。

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VOA Special 2023年8月合集

This leads to high concentrations of nitrogen and phosphorus.

这导致高浓度的氮和磷。

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当月 科学60秒-科学美国人

But to do that, they all need extra phosphorus.

但想达到这个目标,它们需要更多的磷。

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如何避免气候灾难

Things like nitrogen, phosphorus, even gold, lithium, cobalt, all types of metals.

比如氮,磷,甚至金,锂,钴,所有类型的金属。

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Crash Course 植物学篇

It has very little of the chemicals nitrogen and phosphorus that plants need.

乎没有植物所需的化学物氮和磷。

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科学60秒 听力 2016年3月合集

All that extra phosphorus could be fertilizer for ocean life.

“所有这些额外的磷将成为海洋生物的肥料。

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巴斯克维尔的猎犬

The hound, which was shining with phosphorus, chased Sir Charles down the Yew Alley.

那只猎犬闪着磷光,顺着水松小道就向查尔斯爵士来。

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VOA常速英语_非洲

We tried to enrich the soil with nutrients, for example, with phosphorus with potassium.

我们试图用养分来丰富土壤,比如,用磷和钾。

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当月 科学60秒-科学美国人

Different chemicals reflect different wavelengths, so we can see nitrogen, phosphorus and carbon levels.

不同化学物反射不同波长,因此我们弄清氮、磷和碳的水平。

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福尔摩斯探案之巴斯克维尔的猎犬

The old story of the supernatural hound probably gave Stapleton the idea of using phosphorus.

关于那只魔狗的那个古老的故事使他萌发使用磷的念头。

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经济学人-科技

And those leaves also started secreting acid fluids that could dissolve any incoming apatite, assisting phosphorus's absorption.

这些叶子也开始分泌酸性液体,可以溶解任何进入的磷灰石,帮助磷的吸收。

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It turns out, bird guano is amazingly rich with these sources of fixed nitrogen and phosphorus.

结果表明,鸟粪中含有相当丰富的固态氮和磷。

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当月 科学60秒-科学美国人

Trees that associate with arbuscular mycorrhizae tend to have more nitrogen and phosphorus in their leaves.

与丛枝菌根关联的树木,其树叶往往含有更多的氮和磷。

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科学60秒 听力 2016年3月合集

They found that Greenland's rivers are much richer in phosphorus than previously believed.

结果他们发现,格陵兰的河流比以前认为的拥有更丰富的磷含量。

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我们星球的秘密

And it's filled full of things which are essential for life — things like nitrogen and phosphorus.

这种混合物里充满生命所必须的元素——比如氮和磷。

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当月 科学60秒-科学美国人

And in exchange, the fungus provides the tree with nutrients like nitrogen, phosphorus, calcium, sulfate, water, etcetera.

作为交换,真菌为树木提供氮、磷、该、硫和谁等养分。

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经济学人-科技

As soon as a lack of phosphorus announced itself, two things happened.

缺磷现象一旦发生,就会出现两种情况。

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Scishow 精选系列

These materials all have a lot of nitrogen, phosphorus, and other elements that help plants grow.

这些物都含有很多氮、磷以及其他帮助植物生长的元素。

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