树脂

In addition, the viscoelastic effects on the phase separation, the chemorheology and the critical gelation of the blends during isothermally curing were also studied.

第二部分研究了双酚A型氰酸酯树脂改性二苯甲烷型双马来酰亚胺树脂体系中的固化反应机理及其对改性体系结构的影响。

For centuries, the resinous secretion s that Laccifer lacca beetles deposited on trees had provided a cottage industry in southern Asia, where peasants heated and filtered it to produce a varnish for coating and preserving wood products

几个世纪以来，紫胶虫积存在树上的树脂状分泌物为南亚的家庭小工业提供了原料，该地区农民把树脂分泌物加热过滤，生产一种用作涂料和保护木制品的清漆。

For centuries, the resinous secretions that Laccifer lacca beetles deposited on trees had provided a cottage industry in southern Asia, where peasants heated and filtered it to produce a varnish for coating and preserving wood products.

几个世纪以来，紫胶虫积存在树上的树脂状分泌物为南亚的家庭小工业提供了原料，该地区农民把树脂分泌物加热过滤，生产一种用作涂料和保护木制品的清漆。

For enturies , the resinous secretions that Laccifer lacca beetles deposited on trees had provided a cottage industry in southern Asia , where peasants heated and filtered it to produce a varnish for coating and preserving wood products .

几个世纪以来，紫胶虫积存在树上的树脂状分泌物为南亚的家庭小工业提供了原料，该地区农民把树脂分泌物加热过滤，生产一种用作涂料和保护木制品的清漆。

For centuries, the resinous secretions that Laccifer lacca beetles de-posited on trees had provided a cottage in-dustry in southern Asia, where peasants heated and filtered it to produce a varnish for coating and preserving wood products.

几个世纪以来，紫胶虫积存在树上的树脂状分泌物为南亚的家庭小工业提供了原料，该地区农民把树脂分泌物加热过滤，生产一种用作涂料和保护木制品的清漆。

Objective: To investigate differences between the mechanical properties of denture base processed by traditional mixing and malaxation method, and by traditional hot water polymerization and electrical heat-polymerization. And to study which kind of mixing and curing method can enhance the properties of denture base resin.

分别探讨两种不同混合方式和两种不同热加工固化方式对义齿基托树脂性能的影响，从而研究何种混合方式及加热固化方式更有利于提高基托树脂的性能。

A series of maleopimaric acid polyester amino resins were made from maleo￣pimaric acid polyesters crosslinked by etherified melamine formaldehyde resins.

以马来海松酸和线性小分子二醇为原料，合成马来海松酸聚酯多元醇，再用氨基树脂交联，制备马来海松酸聚酯氨基树脂。

A new process has been studied to synthesize malonic acid from diethyl malonate through hydrolysis reaction and catalyzing by 732 type cation exchange resin.

用732型阳离子交换树脂催化水解丙二酸二乙酯制取丙二酸，考察了反应温度、反应时间、水与丙二酸二乙酯的质量比、丙二酸二乙酯与树脂质量比等工艺条件对收率的影响。

The result shows:(1)Through the XDA Ⅱ macropore adsorptionresin treating, the nitrophenol adsorption rate, resin regeneration efficiency, nitrophenol recovery rate and COD removal rate reach 100%, 95 4%, 95 4%and 44 1%, respectively.

结果表明：（1）XDA—Ⅱ型大孔吸附树脂对废水中硝基苯酚的吸附率几近100％，树脂再生率和硝基苯酚回收率均达95.4％，吸附对COD的去除率达44.1％。

The results calculated by the Elovich rate equation showed that K release rates from 1 mol.L-1 HNO3 extraction ＞those from 2 mol.L-1 HNO3 extraction ＞those from H-resin extraction. Elovich equations combining with the data of H-resin and 2 mol.L-1 HNO3 successive extraction could well described the release characteristics of soil K. The correlation coefficients of the equations reached most significant levels (r＝0.956**—0.999**), and standard errors of specific K release capacities between the vaules calculated by the equations and those measured by both successive extractions were smaller(s=1.61 and 3.52). The specific release rates of soil K calculated by the Elovich rate equations were significantly correlated with the indices of soil K availability (the amounts of easily available K, nonexchangeable K, total available K in soils and K absorbed by ryegrass).

研究结果表明：1 mol.L-1 HNO3提取法的释K速率＞2 mol.L-1 HNO3提取法的释K速率＞氢饱和交换树脂提取法的释K速率；氢质交换树脂和2 mol.L-1 HNO3提取法结合Elovich模型较理想地描述了土壤K素的释放特性，拟合方程的相关系数均达极显著水平(r＝0.956**-0.999**)，土壤特征累积释K量的计算值与实测值的标准差较小(s=1.61和3.52)，且通过速率方程计算的土壤特征释K速率与K素有效性指标(速效K、缓效 K、有效K及黑麦草总吸K量)的相关性也较为密切。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。