urea的例句大全

Production Process of Urea by CO2 Stripping Method with Highly Effective Condensation and Low Installation Level

高效冷凝及低安装高度CO2气提法尿素生产工艺高速度高密度精密压铸法

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On the Determination of NH_3 and CO_2 in Urea Condensed Fluid by Conductimetric Titration

尿素冷凝液中NH3和CO2分析方法探讨

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Sodium cyanate was prepared from reactants& urea and anhydrous sodium carbonate through liquid-solid chemical reaction method, in the solvent of N, N-dimethlformamide ( DMF).

使用液固化学反应法，以尿素和无水碳酸钠为原料，在N，N-二甲基甲酰胺（DMF）溶剂的反应介质中，制备了氰酸钠产品。

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Results showed that sodium cyanate with 98.1% purity could be obtained in the medium of DMF, when the mole ratio of urea to anhydrous sodium carbonate was 2.5, the reaction temperature 120~ 140 ℃ and reaction time 8~ 10 h.

实验结果表明，在DMF反应介质中，当尿素与无水碳酸钠物质的量比为2.50，反应温度120~140℃，反应时间8~10h，可以制得纯度为98.1%的氰酸钠产物。

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Methods Mice were divided into three dose groups of 0.83, 1.67 and 5.00g/kg. Loading swimming time, levels of liver hepatin, blood urea nitrogen and blood lactic acid of the mice were detected.

方法设0.83g/kg、1.67g/kg和5.00g/kg体重3个剂量组，对小鼠负重游泳时间、肝糖原、血尿素氮和血乳酸进行测定。

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Based on character of structure formation of urea formaldehyde ( UF) resin, a new synthesizing technology was designed for making low formaldehyde emission UF resin for bagasse medium density fiberboard ( MDF).

以脲醛树脂结构形成特征为基础，研制了一种甲醛释放量低、内结合强度高的适用于蔗渣中密度纤维板生产的脲醛树脂胶粘剂。

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Using barium hydroxide octahydrate and urea as raw material, barium carbonate is prepared by homogeneous precipitation method.

以工业氯化镁和硫氢化钡为原料，采用复分解法合成高纯氢氧化镁。

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Studies on the Synthesis and Biological Activity of Benzoyl Urea

苯甲酰脲类衍生物的合成及生物活性研究

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Recent Development of Benzoyl Urea Chitin Synthesis Inhibitors

苯甲酰脲类几丁质合成抑制剂的研究进展

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The structures, synthetic methods, insectical mechanism, degradation, together with environmental safety of benzoyl urea chitin synthesis inhibitors were reviewed in this paper.

对苯甲酰基脲类几丁质合成抑制剂的结构、合成方法、作用机制、代谢及环境安全性等进行了评述。

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The serum ionized calcium, citrate, bicarbonate, sodium, serum creatinine and urea concentration.

监测血清游离钙、枸橼酸、血钠、碳酸氢根浓度；

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The rat plasma free hemoglobin, unbound bilirubin, creatinine, blood urea nitrogen were measured. Results: There was no difference between Glycerol and Fructose Injection groups and saline groups on the lyses of human and rat RBCs.

同时测定研究组和对照组大鼠血浆游离HB、蛋白非结合胆红素（间接胆红素）、尿素氮（Blood urea nitrogen，BUN）、肌酐的含量，以对甘油果糖注射液安全性进行研究。

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A study on the drying properties of white birch before and after urea modification

白桦材尿素改性前后干燥特性的研究

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This article introduces the application of waste gas from urea plant in food-grade CO _ 2 purification.

介绍了尿素生产废气提纯食品级液体二氧化碳技术在我厂的应用,起到了环保与循环经济的双重效果.

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The immediate effect of urea on the soil reaction is alkaline.

尿素对土壤反应的直接效果表现为碱性反应.

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To meet the requirements of new laws, Japanese auto enterprises execute a series of improvements including urea SCR system from NISSAN diesel motor company, DPF system from HINO Co., and electronic control super-high-pressure fuel injection equipment system, etc.

为适应新法规的要求，日本汽车企业进行了一系列的改进，包括日产柴油机公司研发的尿素SCR系统、日野DPF系统以及电子控制超高压燃油喷射装置系统等等。

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Study on the Solubility Properties of Soybean Protein in Dimethylsulfoxide/ Urea

大豆分离蛋白质在二甲亚砜/尿素中溶解特性的研究

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Design defects of pool ammonium carbamate condenser of co_2 stripping process urea plant

二氧化碳汽提法池式冷凝器的设计缺陷

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Reasons for side bar break on HP ammonium carbamate pump en urea plant

尿素高压甲铵泵侧杆断裂原因及对策

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Catalytic Action of ZnO on the Thermal Decomposition of Urea

氧化锌对尿素热分解过程的催化作用

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