查询词典 urea-formaldehyde

Spherical yeast OS-194 is an only erythritol production osmophilic yeast. 10 percent of glucose ,0.5 g/dL for yeast extract and 0.1 g/dL for urea were the best components of medium,which obtained high erythritol yield by OS-194.The optimum culture conditions were 35℃,150 rpm,and 4 d.

球拟酵母OS-194是一株单产赤藓糖醇的耐高渗酵母，该菌株高产赤藓糖醇的最佳培养基配方为：葡萄糖10 g/dL，酵母膏0.5 g/dL，尿素0.1 g/dL。

The results indicated that the etiolation cause of the substrate mature leaf was the deficiency of available nitrogen in the soil. Spraying urea on the yellow leaves can turn the color of substrate mature leaf to green, but it does not have such effect on new shoots.

结果表明，土壤中有效N含量低是导致茶树下部成叶黄化的原因，喷施尿素能使下部成叶快速转绿，但并不能使上部新梢转绿。

The paper calculates the composition of the waste gas of high pressure scrubber before and after hydrogen peroxide passivation in the carbon dioxide stripping urea plant,studies the explosibility of the waste gas,and makes proposals of production operatio

计算二氧化碳汽提法尿素装置采用双氧水钝化前后高压洗涤器尾气的组成，讨论该尾气的燃爆性，提出生产操作建议。

The urine is collected by the fertiliser industry from farmyard waste and refined into pure urea, which is

这是环保技术领域的最新成果，我们相信它会使我们的城市变得更加适宜于人类居住。

And the last, the effects of fermented cottonseed-hull on dairy performance were studied with feed tests. In experiment 1, Cottonseed-hull and comminuted cottonseed-hull were fermented with complexing strains of microbials including EM and probiotics, using seven pairs of formulation have been formed by corn meal, molasses and fecula combined with urea and zein meal.

试验一利用EM菌液与益生素混合扩大培养后的复合菌液，选用玉米粉、糖蜜、淀粉三种炭源和尿素、玉米蛋白粉两种氮源共组成了7组发酵底物配方，将棉籽壳分成微粉样与原始样，发酵结束后对测定结果进行统计分析。

With water as urea solvent and an organic chlorine compound as activator, the adducts formed into small spheres which are easily filterable.

用尿素饱和水溶液，有机氯化物为活化剂，生成的尿素-正烷烃络合物成球状，易於过滤分离。

They were reversible un-competitive inhibitors, and their inhibition constants of free enzymeK(subscript I were 254.00 and 136.78 mmolL^(-1), respectively. Urea was reversible mixed-type inhibitor, and its inhibition constants of free enzymeK(subscript I and enzyme-substrate complexK(subscript IS were determined to be 379.02 and 1182.00 mmolL^(-1), respectively.

Na2SO3和H2O2对酶的抑制均表现为可逆反竞争性类型，它们对游离酶的抑制常数K(下标 I分别为254.00和136.78 mmolL^(-1)；尿素对酶的抑制表现为可逆的混合型抑制，它对游离酶的K和对酶－底物复合物的抑制常数K(下标 IS分别为379.02和1182.00 mmolL^(-1)。

Considering reactor synthesis conditions, the coefficients of calculating the ammonia standard fugacity have been optimized and the results of thermodynamic model agree well with experimental data.

本文采用扩展的UNIQUAC方程对NH〓-CO〓-H〓O-urea体系气液平衡进行模拟计算，以满足尿素生产系统中高压系统的流程模拟计算的需要，并重新回归了模型氨组分的标准态逸度，使模型计算结果与实际数据更为相符。

The urea-formal dehyde resin, polyurethane resin and SiC sand were used to modify the furan resin sand respectively.

分别采用脲醛树脂、聚氨酯及SiC原砂作添加剂，对呋喃树脂砂进行改性。

Effect of different urea dosage on the growth of Gerbera jamesonii in seedling and flowering stage was studied, and the leaves nitrogen nutrition diagnosis was carried out.

研究了不同尿素施用量对非洲菊苗期长势和开花的影响，并进行了植株氮素营养诊断。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。