马来酸

The easiest materials to produce are probably acid functionalized polymers, especially those with grafted or copolymerized anhydride groups.

可制备的最简单材料可能是酸功能化聚合物，特别是那些带有接枝或者共聚的马来酸酐基团的聚合物。

Polyaspartic acid was synthesized with maleic anhydride and salvolatile as raw material by the method of thin layer polymerization.

以马来酸酐和碳酸铵为原料，通过薄层聚合制备了聚天冬氨酸，研究了反应物配比、聚合时间及反应温度等因素对聚合物产率、相对分子质量的影响；考察了聚合物用量及相对分子质量对阻垢性能的影响。

II. Exploring non-radioactivc method to select the optimal DNA-bindingsequencc fOr singIe-chain reprcssorCloning and expression of single-chain repressors with cysteine tai1 wereperformed and immobilized these protein in the solid surface by using the standardmicrowell plates Which have been activated to contain maleimide grouPs, al1owing tobind sulthydryl-containing protein on its surface.

二。非同位素的方法筛选单链阻遏蛋白的最佳DNA结合序列初探克隆和表达了带半眈氨酸尾的单链阻遏蛋白，利用己包彼了马来酚胺的活性板可以与自由琉基结合的特性，将蛋白固定在活性板表面。

Epoxysuccinic acid was synthesized from maleic anhydride using sodium tungstate as catalyst and hydrogen peroxide as oxidizer and was characterized by IR and 13 C NMR.

以马来酐为原料，钨酸钠为催化剂，双氧水为氧化剂，合成了环氧琥珀酸，并对其进行了红外、13C核磁表征。

Polyaspartic acid was synthesized by self-catalysis process with microwave using maleic anhydride and ammonium acetate as raw materials.

以马来酸酐和乙酸铵为原料，在微波条件下用自催化法合成了聚天冬氨酸。

The basic principle of the toughening and modifying on bismaleimide resin was introduced, the characteristics and the modifying effects of the toughening and modifying with thermoplastic resin, the combination of aromatic diamine and epoxy resin, organic silicone, allyl compounds, cyanate ester resin, the blends of three-dimensional braided carbon and Kevlar fabrics and so on were discussed.

介绍双马来酰亚胺树脂增韧改性的基本原理，论述了热塑性树脂增韧改性、芳香族二胺和环氧树脂相结合增韧改性、有机硅增韧改性、烯丙基系列化合物增韧改性、氰酸酯树脂增韧改性、三维编织碳纤维和凯夫拉纤维混合增韧改性等方法的特点与改性效果。

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。