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Every tonne of coal contains,on average,30 kilograms of nitrogen.

每吨煤平均含30公斤

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Algae microorganisms in the water overpopulate because of the surplus nitrogen.

水中的藻类微生物由于的富余而过度繁殖。

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Nonsoluble nitrogen (NSN) and soluble nitrogen (SN) in ten tobacco samples were determined with a flow analyzer.

采用流动分析法测定了10种烟草中的不溶性和可溶性

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Conclusions Obvious negative nitrogen balance and hypoalbuminosis occur after surgery for tumors of digestive system.

结论消化道肿瘤病人术后可出现明显的负平衡和低蛋白症。

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The corresponding solving methods,exsiting in the determination of the amino nitrogen by Nashi colormetric method.

针对纳氏比色法测定氨过程中存在的问题,提出了相应的解决办法。

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"There are several kinds of gas in the air, with nitrogen amounting to the most part."

"空气中有好几种气体,所占的比重最大。"

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Procarbazine, nitrogen mustard, and ifosfamide, which can increase risk for myelodysplastic syndromes and acute myelogenous leukemia.

丙卡巴肼、酰胺:可增加患骨髓增生常综合症和急性粒细胞白病的风险。

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Milia in regressing plaques of mycosis fungoides:Provoked by topical nitrogen mustard or not?

蕈样肉芽肿消退斑块发生粟丘疹:是由外用起的吗?

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After the precursor's thermal decomposition under the protection of nitrogen,a kind of nonstoichiometric titanium oxide can be prepared.

用钛粉和草酸反应制得前驱物,在气保护下600℃热分解前驱物制备了一种非化学计量钛氧化物。

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The wastewater of hexanolactam (nylon) fiber production in Shijiazhuang Synthetic Fiber manufactory is high concentrated with organic nitrogen compounds.

己内酰胺锦纶化纤废水属于高含高浓度有机废水。

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The cryoprobe soaked in liquid nitrogen is a new cryother- apic instrument with metallic material as its cold storage.

浸冷式液冷刀,系用金属材料为储冷装置的新式冷冻治疗器械。

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With calcium chloride precipitant to eliminate the interference of PO43-, total nitrogen in compound fertilizer is determined by formol method.

用氯化钙作沉淀剂,消除酸根离子的干扰,用甲醛法测定复合肥中的总

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The function of hydrocarbons and nitrogen oxides in photochemical smog formation and the formative process of ozone and peroxyacetyl nitrate are discussed.

介绍了氧化物、碳氢化合物在形成光化学烟雾中的作用和臭氧、过氧乙酰硝酸酯产生的过程,并介绍了光化学烟雾的形成机理。

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In the last few years,the tripodal ligands bearing nitrogen atoms have drown much attention because of their polydentate,flexility and ease to synthesize.

近年来,含三角架配体由于其多配位点、半刚性及易合成等特点,起了人们的广泛兴趣。

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It was found that the sulphonamide group and the substituents on nitrogen atom within the molecule would effect the properties of these dyes.

坚牢度和光谱特性,发现磺酰胺基和在它的原子上的取代基会影响该类染料的性能。

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A method for determination of nitrogen in N-MnFe by titrimetry with amidosulfonic acid after alkaline distillating separation has been studied in this paper.

本文研究了强碱蒸馏分离-氨磺酸滴定法测定化锰铁中的分析方法。

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Two different kinds of palladium complexes of nitrogen containing polymere havebeen prepared and their catalytic actions for p -nitro -methyl benzfene have been invertigeted.

制备了两种不同的含高分子-钯络合物,并研究了它们对对硝基甲苯的催化活性。

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The results indicate that the modification by heating and acids could not significantly increase the adsorption capacity of the modified stellerite for ammonia nitrogen.

结果表明,加热改性与无机酸改性不能显著提高沸石对氨的吸附量。

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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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It is equipped with asphalt return tube, anti-puffing pressure vent valve, anti-aging overhead nitrogen valve, thermometer, volumeter and output asphalt rapid discharge valve and coupling.

配备沥青溢流管、防冒液呼吸阀、防老化顶置充阀、温度计、容量计和输出沥青的快速卸料阀及接耦。

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韩刚B2A“译点通”:听力笔记快速上手宝典

Where does all this nitrogen come from?

这些氮是哪里来的呢?

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60秒 听力 2015年3月合集

Lightning strikes can convert some nitrogen into a bioavailable form.

雷电能将部分氮气转化成一种可用的生物形式。

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现代英语精读(第2版)第二册

Did you know that beans give the soil nitrogen?

你知道吗?菜豆可以为土壤提供氮。

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PBS趣味科普

They use acid to bore holes into rocks and fish out nitrogen and phosphorous.

它们使用酸在岩石中钻孔并提取氮和磷。

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Scishow 精选系列

But to prove it, they needed to follow the nitrogen!

但为了证实这种点,科家们需要研究氮!

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现代英语精读(第2版)第二册

Grass absolutely needs nitrogen. You can get nitrogen pellets at the seed shop.

“这种植物一定要用氮肥,你可以去种子店买些氮肥。”

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当月 科60秒-科美国人

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

菌根关联的树木,其树叶往往含有更多的氮和磷。

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双语版 TED-Ed 演讲精选

The air a diver breathes is 78% nitrogen.

潜水员呼吸的气体有78%是氮气。

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连线杂志

What we breathe in, remember, is mostly nitrogen.

记住,我们吸入的部分是氮气。

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连线杂志

The atmosphere is mostly made up of nitrogen.

气主要由氮组成。

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60秒-科美国人 2023年1月合集

They add carbon and nitrogen, and extract nutrients.

它们向土壤中添加碳和氮并提取养分。

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Scishow 精选系列

But proteins also contain a lot of nitrogen.

但蛋白质同样也含有量的氮。

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咖啡品鉴指南

And I think the liquid nitrogen is just cool.

我觉得液氮很酷。

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少儿百科之歌

They believe my surface is covered in nitrogen ice.

他们相信我的表面覆盖着固态氮冰。

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VOA慢速英语_科技

The others are carbon, oxygen, hydrogen, nitrogen, and sulfur.

其他的是碳、氧、氢、氮和硫。

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VOA Special 2023年8月合集

This leads to high concentrations of nitrogen and phosphorus.

这导致了高浓度的氮和磷。

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假如有如果

Here at WHAT IF, we've tried throwing trash and pouring liquid nitrogen into volcanoes.

这里是《假如有如果》,我们试过扔垃圾,试过将液氮注入火山。

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VOA Daily Standard 2021年2月合集

" The product in question that's involved in this incident has been confirmed to be liquid nitrogen" .

" 此次事件相关的涉案产品已确认为液氮。"

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假如有如果

Our atmosphere contains about 20% oxygen and roughly 78% nitrogen.

我们的气中约含 20% 的氧气和 78% 的氮气。

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当月 VOA Special English

Too much fertilizer causes the soil to release nitrogen gas.

过多的肥料会导致土壤释放氮气。

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3G, 401(K), a,
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