树脂

In brief, the structure and performance of the MUF resins prepared in different way were different when the resins were prepared and stored.

总之，采用完全不同方法制备的MUF树脂无论是在树脂制备的不同阶段还是在树脂贮存过程中均表现出完全不同的结构特点和性能特点。

Then he analyzed the effects of molar ratio of PF and MUF resin, mixture proportion, and hot pressing conditions on viscosity and durability of the modified resin, surface veneer color and bonding performance of the board, and provided the optimum technology parameters for the application of PF resin.

本研究采用三聚氰胺脲醛树脂对PF树脂进行改性，生产浅色改性PF胶粘剂，探讨了MUF与PF树脂摩尔比、混合比、热压条件等对胶液的粘度、缩合度、稳定性、胶层颜色及胶合质量的影响。

This process involves the secretion of oleoresin,a complex mixture of monoterpenes,sesquiterpenes and diterpenoid acids.

树脂的抗害过程，也即树脂的分泌过程，树脂是由单萜、蓓半萜和二萜组成的复杂混合物。

BACKGROUND: Soft-start is a newly photoactivation mode, which has certain effect on composite resin. However, previous study mainly concentrated on the conventional resin-based composites, the reports regarding soft-start on packable resin-based composites is poorly understood.

背景：弱光启动是近年来应用于临床的新的固化方法，其对复合树脂的性能具有一定的影响，以往国外的研究主要是针对通用型树脂进行的，而对可压型树脂的研究报道较少。

It was pointed that there were some differences between domestic PVC resin and import products in plasticization function .

介绍了运用附带数据处理机的流变仪PL2000-6分析通用PVC树脂的流变行为，通过"相关程序"研究了国内外同牌号PVC树脂的熔融曲线，发现国产PVC树脂和进口产品在塑化性能方面存在着一定的差距。

Polyvinyl acetate resin was prepared by suspension polymerization, and modified to carboxymethylated polyvinyl alcohol resin after several steps of reaction.

以悬浮聚合方法合成大孔聚醋酸乙烯酯树脂，通过一系列反应修饰成弱酸性阳离子交换树脂，表征了树脂的性能。

The joining of graphite, ceramic SiC and C_f/SiC composites via preceramic silicone resin at high temperature (800~1400℃) was studied.

对先驱体硅树脂高温(800～1400℃)转化陶瓷接头连接石墨、陶瓷SiC及Cf/SiC复合材料进行了研究，着重对硅树脂固化裂解过程、硅树脂溶液浓度及裂解温度对连接性能的影响进行了探讨。

The joining of graphite,ceramic SiC and C_f/SiC composites via preceramic silicone resin at high temperature(800~1400℃) is studied.

对先驱体硅树脂高温(800~1400℃)转化陶瓷接头连接石墨、S iC陶瓷及Cf/S iC复合材料进行了研究，着重对硅树脂固化裂解过程、硅树脂溶液浓度、裂解温度及惰性填料对连接性能的影响进行了探讨。

Results The purification effect was satisfactory when the concentration of original solution of the extract of Cacumen Platycladi was 0.20 gmL^(-1), the loading amount was 0.375 g of Cacumen Platycladi per 1 mL of wet AB-8 resin, the adsorption velocity was 1 mLmin^(-1), the eluant was 70% alcohol being 4 times as much as the resin volume, and the elution velocity was 2 mLmin^(-1). AB-8 resin could be used for 3 times repeatedly after being reproduced by 95% of ethanol and 1 moLL^(-1) of natrium hydroxydatum. The remaining rate of the total flavonoids and quercitrin was over 70% and 95% respectively, and the remaining rate of peaks 1~3 was over 90%.

结果 AB-8型大孔吸附树脂纯化效果较好，最佳工艺条件为：上样液浓度为含生药量0.20gmL^(-1)，上样量为每1mL湿树脂上样0.375g生药，吸附速率为1mLmin^(-1)，洗脱液为4倍柱体积的70%乙醇，洗脱速率为2mLmin^(-1)；树脂经95%乙醇和1moLL^(-1)氢氧化钠溶液再生后，可重复使用3次。

As the widely used resin matrix and composites, two kinds of epoxy matrix and its CF/epoxy composite and GF/composite have different mechanics property under different temperature. The result shows that the thermal property of the composite mainly depends on the matrix. If the matrix can resist high temperature, its composite can also have high strength under high temperature. resin matrix composite, thermal resistance, thermal deformation coefficient, severity retentivity ratio

多年来 ，人们一直致力于耐高温复合材料的研究工作，在耐高温树脂中能经受长期高温氧化的热固性树脂只有聚酰亚胺，本文主要研究三种树脂基复合材料在不同温度下的性能，即以聚酰亚胺为基体的复合材料以及两种环氧基复合材料在不同温度的性能。2 实验2 。1 材料选择研究中所用的增强材料选用英国考陶尔兹公司T30 0型碳纤维和进口UM - 40碳纤维以及南玻院S2高强玻璃纤维

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。