查询词典 UF

Urea-formaldehyde resin adhesives are widely used in the production of plywood because of their good adhesiveness and low cost, but the problem of formaldehyde released from UF has attracted more and more attention. Therefore, the study and use of environmental friendly resin adhesives containing no formaldehyde become to be the focus of the researches.

脲醛树脂由于其良好的粘接性能及较低的生产成本被广泛应用于胶合板的生产中，但其甲醛释放问题却引起越来越多的关注，因此开发使用无醛的绿色环保型胶粘剂就成为目前胶粘剂研究工作的核心。

The patients — one woman and two men ranging from 21 to 24 years old with a type of hereditary blindness called Leber congenital amaurosis type 2 — volunteered to test the safety of an experimental gene-transfer technique in a phase 1 clinical research study conducted by UF and the University of Pennsylvania with support from the National Eye Institute of the National Institutes of Health.

这些病人——有一名女性和两明男性，年龄在21-24岁之间，患有一种遗传性失明叫做二型利伯先天性黑矇——这三名患者志愿接受基因转移技术的实验安全性测试，这是佛罗里达大学和宾夕法尼亚大学在国立卫生研究院的国立眼病研究所资助下进行的第一期临床研究。

In order to provide theoretical reference to the burl's directional cultivation and utilization research was done on Populus tomentosa,Salix matsudana and Robinia pseudoacacia,and the pH value, buffering capacity of acid and alkaline,curing time of UF of various species of the normal wood and the burl wood were compared.

为了给瘤材的定向培育和合理加工利用提供科学依据，以自然生长的、带有树瘤的毛白杨、旱柳、洋槐为试验材料，对各树种的正常材和瘤材的pH值、酸碱缓冲容量、与脲醛树脂胶固化时间等指标，进行对比研究。

It was found, several products with different molecular weight can be separated from a rough dextran and UF process was enhanced observably by an electric field. There is an optimal voltage corresponded to different concentrations. Based on mass balance, gradational UF can be used as a simple and effective method for biomacromolecular analysis.

实验结果表明，分级超滤法能从单一的粗品中分离出分子量范围不同的多个产品；外加电场对超滤过程有较明显的强化作用，不同浓度的料液存在其对应的最佳外加电压；基于质量衡算的分级超滤可以作为生物大分子物质的一种简便而且有效的分析手段。

At room temperature the leakage of alu- minium electrolytic capacitors is of the order of 20 nA/pF and that of tantalum ones is 5

室温条件下，铝电解电容的漏电流约为20nA/uF ，钽电解电容则为5nA/uF 。

At room temperature the leakage of alu- minium electrolytic CAPACITOR s is of the order of 20 nA/pF and that of tantalum ones is 5

室温条件下，铝电解电容的漏电流约为20nA/uF，钽电解电容则为5nA/uF。

Results The according perception of Normocytic, Microcytic and Non-classified RBC between phase contrast microscope and UF-100 urine sediment analytic instrument RBC-info are 91.4%, 94.4%, 83.3% respectively, the according perception between phase contrast microscope and RBC-P70Fsc are 94.9%, 95.7%, 94.7% respectively, and the according perception between phase contrast microscope and RBC Fsc-DW are 84.4%, 86.8%, 90.5% respectively, the specificity of UF-100 and phase contrast microscope in glomerular hematuria and non-glomerular hematuria are 84.3%, 88.1% and 83.3%, 87.9% respectively.

结果 观察相差显微镜与流式细胞分析仪RBC-info尿红细胞均一型、变异型、混合型形态符合率分别为91.4%、94.4%、83.3%，与RBC-70Fsc符合率分别是94.9%、95.7%、94.7%，与RBC-Fsc-DW符合率分别是84.4%、86.8%、90.5%，流式细胞分析仪与相差显微镜的特异性在肾小球性血尿和非肾小球性血尿分别是84.3%、88.1%和83.3%、87.9%。

Results indicated that introducing some ring-structure into UF molecule during the synthesis could efficiently improve the water resistance of UF resin. The Uron ring would form if reaction temperature was more than 75 degrees C, and the higher Uron content was obtained at pH 8 and 85 degrees C in the absence of catalyst when the reaction time was long enough.

结果表明：通过在脲醛树脂合成中引入Uron环等环状结构物质能够有效提高脲醛树脂胶黏剂的耐水性；当反应温度高于75℃时，反应产物都生成了一定量的Uron环物质；在pH值为8左右、温度控制在85℃、不使用催化剂、尽可能延长反应时间的条件下，尿素与甲醛成环化反应生成的Uron相对值最多。

Temperature performance - the use of structural insulation and configure trap function with co-extruded tape, so that the heat transfer coefficient Uf box up

温性能——采用断热结构并配置具有隔气功能的共挤胶条，使框的传热系数Uf可达

The paper analyses the regularities of all relative factors in the processes of 4.8 m 3 external cooling condenser collecting UF 6, liquidising solid UF 6 and transferring liquid UF 6, and researches the application effect of the condenser in UF 6 producing process.

研究分析了 4 8m3外冷式隔板冷凝器在成品混合气中的UF6捕集、固态UF6液化、液相UF6转移等单元操作过程中各种影响因素的作用规律，探讨了其在UF6生产过程中的使用效果。

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。