多酸的

The author found that the big piece-size muscovites of China are the normal muscovites; the small-size muscovites in the metamorphic rock area are mainly phengite. The Indian muscovites studied both big and small piece-size of muscovite, are normal muscovites. The surface activity of Indian muscovite substrate is higher than China ones. Acid is easy to erode paralleling to the direction of the muscovite substrate face. Although acid treating does not destroy the muscovite structure, the thermal stability of muscovite has be decreased.

研究发现我国白云母主要产地的大片白云母均为普通白云母，变质岩地区的碎白云母以多硅白云母为主；本文研究的印度的大片白云母、碎白云母均为普通白云母；印度白云母基片的表面活性高于我国白云母；酸处理容易沿平行于白云母基面的方向侵蚀，虽未使白云母晶体结构产生破坏，但造成了白云母热稳定性降低。

Novel rod like phenylene thiophene based polyhydroxy amphiphiles, derivatives of gallic acid combining three hydrophilic 2,3-dihydroxypropyloxy groups and one alkyl chain via central aromatic linking units, have been synthesized by using Ni, Pd(0) catalyzed coupling reaction as key steps.

以Ni， Pd (0)催化的C-C偶合反应为关键步骤合成了基于苯联噻吩的棒状型多羟基两亲性分子，它们是以棒状芳香核为中心部分，一端带三重亲水的2，3-二羟基链，另一端为带一条烷基链的没食子酸衍生物。

Chapter II syntheses, characterizations, mechanisms and properties of polynuclear copper complexes with hydroxylated bipyridine-like ligands

另外，本课题选择的微孔的类分子筛、多钒酸和手性的金属配合物的研究都是当今国际和国内无机化学的前沿领域。

The results showed that film packaging obviously decreased the weight loss and rotted rate, and to some extent decreased the respiration rate and slowed down the reduction of anthocyanin content, inhibited polygalacturonase and pectinesterase activities. But the decrease of total soluble solids, vitamin C and protopectin contents were slightly affected by packaging film.

结果表明，薄膜包装对降低果实失重率和腐烂率具有较好的效果；对降低呼吸强度、抑制多聚半乳糖醛酸酶和果胶酯酶的活性以及花色苷含量的下降有一定效果；对减缓贮藏期间可溶性固形物、维生素C和原果胶含量的下降无明显影响。

In order to understand the changes in physiology and the storability of blueberry fruits introduced to southern part of China, and to provide scientific basis for suitable packaging materials, changes of total soluble solid content, vitamin C content, acetaldehyde content, ethanol content, protopectin content and anthocyanin content, respiration rate, polygalacturonase and pectinesterase activities, weight loss and rotted rate of blueberry fruit warn investigated. Different packaging films were used, and the storage temperature was under 2℃.

为了解引种到我国南方栽培的蓝浆果鲜果低温贮藏期间的生理变化状况，并为保鲜贮藏选择适宜的包装材料提供科学依据，研究了在2℃条件下，不同薄膜包装处理对蓝浆果果实贮藏期间可溶性固形物、维生素C、乙醛、乙醇、原果胶和花色苷的含量，以及呼吸强度、多聚半乳糖醛酸酶和果胶甲酯酶活性、失重率、腐烂率变化的影响。

The activity of polygalacturonase,PME,cellulase and the soluble pectin content of MA stor-age were significantly lower than those of control; while the flesh firmness,cellulose content ,protopectin content were sig-nificantly higher than those of control. Results showed that MA storage retarded the softening process of mulberry fruit.

研究了在(2±1)℃下，MA贮藏对桑果细胞壁组分和水解酶活性的影响，结果表明：MA贮藏可抑制桑果呼吸强度和乙烯释放量，MA贮藏桑果的纤维素酶、果胶甲酯酶和多聚半乳糖醛酸酶等细胞壁水解酶活性和水溶性果胶含量显著低于对照，而果实的纤维素和原果胶含量显著高于对照，从而延缓桑果的软化。

Vulcani- zation and mechanical properties of the filled ACM were studied by rheometric measurement, gel fraction analysis, mechanical property tests and dynamic mechanical thermal analysis.

结果表明，在相同的配方条件下，同化学法制备的聚合物相比，辐射法制备的聚合物的酸值较低，分子量较高，分子量多分散系数较小。

Xylan is a major component of hemi-cellulose and is characterized by a -1,4-linked D-xylopyranosyl main chain that carries a variable number of neutral or uronic monosaccharide substituents.

木聚素是半纤维素的主要组成成分，并且是自然界中含量仅次於纤维素的多醣。所有植物的木聚素是由D-xylopyranosyl组成主干而以b-1，4键结，并带有许多像是醣醛酸此种的单糖侧链。

The qualitative and quantitative analysis of schizophrenia and single nucleotide polymorphism of catechol-O-methyltransferase , Proline Dehydrogenase and DYSBINDIN genes were done by using transmission disequilibrium test . Results:(1) The symptoms of first-episode schizophrenia were divided into four independent symptom dimensions: psychomotor poverty, reality distortion, disorganisation and depression-anxiety.

4采用传递不平衡检验、单倍型传递不平衡检验和定量性状传递不平衡检验的方法对6号、22号染色体上3个候选基因，即儿茶酚氧位甲基转移酶(catechol-O-methyltransferase，COMT)、脯氨酸脱氢酶(Proline Dehydrogenase，PRODH)和DYSBINDIN基因的9个单核苷酸多态性(single nucleotide polymorphism，SNP)位点与精神分裂症、神经认知功能、人格特质和临床症状表现的关系进行了定性和定量的遗传学分析。

Growth and sporulation conditions of Alternatia citri were studied in the experiment. The results showed that mannose was the best carbon source and valine was the best nitrogen source. Czapek medium was the most appropriate for growth,and citrus leaf medium was the most appropriate for sporulating.

本试验研究了柑桔黑腐病菌Alternaria citri菌丝生长和分生孢子形成条件，结果表明：病菌在27℃菌丝生长最快，在30℃产孢最多；甘露糖是最好的碳源，D-缬氨酸是最好的氮源，Czapek培养基是菌丝生长最适宜的培养基，桔叶汁培养基是产孢的最适宜培养基。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。