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

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

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。

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。

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。

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。

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。

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

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

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。

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；

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。

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

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.

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.

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。

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

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

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

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