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

合成了四种标题化合物,探讨了其合成方法。

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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、元含氮杂环化合物添加剂。

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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( P 2 O 5 ) ·五氧化二是在过量氧气存在下燃烧元素得到白色、微晶体轻质粉末。

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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.

研究了以三偏酸钠和酰氯为交联剂制成凝胶淀粉。

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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测定,测定结果与参比容液消除法致。

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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氮和,研究海洋异养细菌与海水环境中氮、关系。

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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.

摘要水体中氮营养物质不断积累,部分藻类及水生生物过度繁殖,导致了水体富营养化。

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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...

结果表明,中药芪灵液雌二醇水平,降低碱性酸酶和骨钙素活性,显著骨密度。

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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)进行得项研究中在溶解形态下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酸盐进入工厂。

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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交联淀粉生物降解性能。

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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.

以合成雪硅钙石为晶种,探索了用结晶法以酸钙形式回收废水中适宜条件。

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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,五氧化二化剂合成聚氧乙烯醚酸酯过程;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.

地面水般带色且浊,采用光度法分析水样中总,会使测定结果偏

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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,进行了DTA试验,吸湿性试验,摩擦感度试验。

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TED演讲(视频版)双语精选

For the root, what they need is phosphorus and nitrogen, so by exchanging their carbon they get access to all of the nutrients collected by that fungal network.

对根茎而言,它们需要的是和氮,因此,通过交换它们的碳,它们能够获得真菌网络收集的所有营养。

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英语六听写

But these elements, phosphorus and lime and delicate fibers, are present not in the human body alone: we detect them in places most remote from it.

但是,像、石灰、微细的纤维等这些元素,不仅在人体中可以发现,而且在与人体没有丝毫关系的地方也能检查出它们的存在。

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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,,甚至金,锂,钴,所有类型的金属。

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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,顺着松小道就向查尔斯爵士追过来。

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老人与海

The flow was less strong and as he rubbed the side of his hand against the planking of the skiff, particles of phosphorus floated off and drifted slowly astern.

流并不那么有力,当他把手的侧面在小船船板擦着的候,星星点点的磷质漂浮开去,慢慢朝船梢漂去。

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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的念头。

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国家地理选编

Bone gets its rigidity from calcium and phosphorus, materials found in seashells and teeth.

骨骼坚硬是由于钙和,这些物质同样存在于贝壳和牙齿中。

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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,用和钾。

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VOA慢速英语_美国

Too much phosphorus, mainly from agriculture, has harmed water quality.

过多的(主要来自农业)损质。

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生物学基础入门

Most fertilizers contain nitrogen and phosphorus, though some contain other useful elements like potassium.

大多数肥料含有氮和,尽管有些肥料含有钾等其他有用元素。

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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

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Crash Course 植物学篇

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

它几乎没有植物所需的化学物质氮和

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《分钟地球》趣味科普(精选双语)

In the end, these exquisite gold and russet displays help deciduous trees recover as much as 50% of the nitrogen and phosphorus from their old leaves to help grow fresh new green ones in the spring.

最终,这些美丽的金色和黄褐色树叶帮助落叶乔木回收老叶中多达 50% 的氮和,令大树可以在新春中焕发新绿。

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双语版 TED-Ed 演讲精选

Vitamin D gathers calcium and phosphorus so we can make bones, and vitamin E works as an antioxidant, getting rid of elements in the body that can damage cells.

维他命D富含用于骨质生成的钙与,而维他命E则如同抗氧化剂一样搞定体内损细胞的成分。

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2021诺贝尔得主访谈录

And when we say organocatalyst or organocatalysis, we mean that the catalyst is a small and well-defined organic molecule that consists mainly of elements such as carbon, hydrogen, oxygen, nitrogen, maybe, sulfur, phosphorus, silicon, but no metals.

当我们说有机催化剂或有机催化,我们的意思是催化剂是一种小而明确的有机分子,主要由碳,氢,氧,氮,也许还有硫,,硅等元素组成,但没有金属。

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BBC 听力 2016年3月合集

In the lab, adult teeth soaked in white wine for a day suffered a loss of both calcium and a mineral called phosphorus to depths of up to 60 micrometers in the enamel surface, which the researchers say is significant.

实验室中,浸泡在白葡萄酒中的恒牙(成年牙)60微米的表层牙釉质中出现钙元素和矿物元素的流失。研究人员称这种腐蚀程度算是严重的

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Crash Course 天

Stars explode, and when they do they create the stuff of life: the iron in our blood, the calcium in our bones, the phosphorus that is the backbone of our DNA.

恒星会爆炸,并在这个过程中创造出生命的基本元素:我们血液中的铁、骨骼中的钙、DNA的骨架中的

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科学60秒 听力 2016年3月合集

In fact, the authors speculate that during the last extreme ice age—the so-called " snowball Earth, " some 700 million years ago—all this phosphorus runoff may have caused a bloom in ocean life.

该研究的作者估计,实际在过去的极端冰河代—7亿年前雪球假说中,正是这些使得海洋生命茁壮成长。

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还乡

Just as he had lain down he was surprised to observe the white pole of the staff flash into existence like a streak of phosphorus drawn downwards across the shade of night without.

他正要躺下休息,惊讶地发现白色的旗杆忽地闪亮起来,好像缕缕磷光穿过窗外夜幕,纷纷落到面一般。

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Asap SCIENCE 精选

With oxygen and hydrogen gone, we've lost 75% of our elemental makeup, and only a pile of carbon, nitrogen, calcium, phosphorus and other trace elements would be what's left of our bodies.

随着氧气和氢气的消失,我们身体中75%的组成元素都会消失,只剩下一堆碳,氮、钙、等的微量元素。

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