查询词典 urea

Ammonium sulphite ; urea ; chemical treatment ; rice straw ; effective degradability

亚硫酸铵；尿素；稻草；有效降解率；化学处理

This paper aimed at present status that most researches assembled in chemical products, adopted different determine methods, represented the transformation characteristic of nitrogen among water and soil of the sulphureous urea, confirmed the nutrient release speed, found out the optimum determine method in agricultural production application.

针对目前对缓释肥料释放特性的研究集中在化工制作领域这一现状，采用不同的测定方法，阐明含硫尿素中的养分氮在水及土壤中的转化特点，确定养分的释放速率，以求找出适合农业生产应用的方法。

In April each executes the urea 0.25 ~ 0.5 kilogram, adds the calcium superphosphate 0.5 ~ 1 kilogram.

4月份每株施尿素0.25～0.5公斤，加过磷酸钙0.5～1公斤。

Affecting factors and its variation rules on extrusion granulation of urea- superphosphate granular com pound fertilizer are studied.

对尿素─普钙系颗粒复混肥挤压造粒生产过程的影响因素及其变化规律进行了研究，在单困素实验基础上进行了正变试验，确定了各影响因素对过程影响的大小顺序及适宜的操作范围。

By the analysis of model, the impact degree of four factors to subterranean stem weight was pig dung at first, then potassium sulphate, urea and superphosphate.

对回归模型进行分析发现，4因素对鱼腥草地下茎产量的影响程度依次为：猪粪〉硫酸钾〉尿素〉过磷酸钙。

The corrosion behaviour and mechanism of superpure austenitic stain-less steel 00Cr25Ni22Mo2N in urea processing environment was studied.

运用金相、电子显微镜观察及表面分析技术，研究了超纯奥氏体不锈钢00Cr25Ni22Mo2N制造的汽提管在尿素生产环境下的腐蚀形态和机理。

The results indicate that, comparing with the crystallization without urea, the time of crystal occurrence is 1.5 times longer, the density of suspensoid is raised by 50%, both of crystal length and crystal width are increased, especially...

粒度分布的定量分析显示，尿素硫酸摩尔比为 3.6：1、过程温度80℃时，硫酸钙的成核速率减少了25%，但结晶成长速率增加了1.2倍，结晶粒度分布中心由72.8mm 增大到 142.8mm，平均粒径由70.98mm 增加为 105.45mm 。

In this organogel structure, the p–p stacking interactions among the HPB moieties, the hydrogen-bonding interactions between the urea moieties, and the van der Waals forces between the long alkyl chains cooperatively stabilized the aggregate structure; these are well-known interactions in gel systems.2a,5 Specifically to clarify the effect of the hydroxyl group in the HPB unit on gelation, we also designed and synthesized reference compound 2, which does not contain an adjacent hydroxyl group and thereby cannot induce its planar keto tautomer upon excitation.

在这个organogel结构、p-p叠加之间的相互作用在HPB根、实验之间的相互作用尿素根之间，范德华力长链烷基之间的合作稳定了合计结构；这些都是著名的交互作用的凝胶 systems.2a明确厘清，羟基的效果集团在HPB装置设计和凝胶，我们也是合成的化合物、参考不包含了邻近的羟基从而无法归纳其平面在keto tautomer激励。

By orthogonal design, the optimal fermentation medium for the cellulase production of the strain was 73% wheat bran, 10% soybean meal, 15% corn grain tegument, 2% ammonium sulfite, 0.15% urea, 0.05% potassium dihydrogen phosphate, 0.1% magnesium sulfate.

采用正交试验法，对该菌株生产纤维素酶的培养基配方进行了优化，确定了生产用最适培养基配方：麸皮73%，豆粕10%，玉米皮15%，硫酸氨2%，尿素0.15%，磷酸二氢钾0.05%，硫酸镁0.1%。

Blue electronic ink microcapsules containing phthalocyanine blue BGS particles homodispersed in tetrachloroethylene were prepared by in situ polymerization using Urea-formal-dehyde as wall material.

利用脲甲醛树脂为壁材制备了以酞菁蓝 BGS颗粒分散在四氯乙烯中的悬浮液为核材料的蓝色电子墨水微胶囊。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。