多酸的

Gymnemic Acid, which is extracted from the Gymnema Sylvestre ,is a natural and multi-functional composition.

森林匙羹藤酸(GymnemicAcid ，GA)是一种从森林匙羹藤中提取的多功能天然功效成分，它除了具有独特的甜味抑制功能，还可用于减肥、降血糖等方面，是一种很有前景的功能性基料。

Immunohistochemistry technology was used to evaluated tyrosine hydroxylase of DA synthesis. DA, 5-hydroxytryptophan(5-HT) and their respective metabolic products 3,4 -dihydroxyphenylacetic, homovanillic are also precisely quantified in this research by using high-pressure liquid chromatography with electrochemical detector. The main metabolism monoamine oxidase of DA was processed too. RESULTS:WD can increase the synthesis and the metabolism process of DA .

本文观察了温胆汤及其配伍对大鼠刻板行为的影响，采用了免疫组化技术对多巴胺的合成酶—酪氨酸羟化酶进行了含量测定，应用高效液相-电化学法测定了DA、5-羟色胺（5-HT）及代谢产物3，4—二羟基苯乙酸、高香草酸的含量，并测定了DA主要降解酶—单胺氧化酶。

Effects of isovaleric acid on the biosynthesis of biotechspiramycin were carried out in order to improve the percentage of isovalerylspiramycin Ⅲ and total isovalerylspiramycin of multi-components biotechspiramycin .

为了进一步提高多组分必特螺旋霉素中异戊酰螺旋霉素Ⅲ和总异戊酰螺旋霉素的含量，本文通过外源添加浓度为0.5 g/L的异戊酸使异戊酰螺旋霉素Ⅲ和总异戊酰螺旋霉素的含量分别比对照提高了38.32%和31%。

Meanwhile, the mixture of KAlO〓—K〓CO〓—KOH obtained by clean technology of potassium chromate was separated successfully to obtain qualified Al 〓 product and deeper utilization of the components in chromium chemical industry was realized.

对铬酸钾清洁工艺中的KAlO〓—K〓CO〓—KOH混合物进行了有效分离，得到质量合格的氢氧化铝产品，实现了铬化工的多组份深度利用。

In this study aldylencdithiomethylene Malonic acid acts as the main coordination agents and compound iron ion have been synthesized by the means of solution, As a result ,the 1D polymer is obtained.

本论文采用常规的溶液合成方法，首先设计合成了一个以含有二硫缩烯酮结构的丙二酸类配体和过渡金属铁离子的单核配合物，再以此单核配合物作为配体设计合成了三个异多核配合物和配位聚合物。

The first 3D heterometal phosphonate based on polynuclear cluster with left-handed and right-handed channels has been synthesized, and the gas adsorption ability and the thermal stabilization are also investigated.

合成出首例基于多核簇的三维异金属膦酸有机框架，在此结构中具有交替的左手和右手螺旋孔道，并且研究了此有机框架的气体吸附能力以及热稳定性。

The phytotoxin can restrain the activities of peroxidase , polyphenol oxidase and phenylalanine ammonia lyase that existed in the tree, and so reduce the resistance of the host tree and benefit the fungus to intrude into the tree successfully.

该毒素能抑制寄主组织中过氧化物酶、多酚氧化酶和苯丙氨酸解氨酶的活性，降低寄主树木的抗御能力，从而有利于菌突破寄主的生理防御屏障而成功地侵染生长。

In the second experiment, we would like to understand the relationship between sexual performance and sexual motivation. The partner preference test was conducted to measure sexual incentive motivation, and tyrosine hydroxylase immunohistochemistry was used to assay the dopaminergic neuron activity in the medial preoptic area.

在第二部份实验所探讨的是雄鼠的性动机与性表现两者之关系，本实验以EGb 761作为一实验工具，利用伙伴偏好试验测试雄鼠性诱因动机，并利用酪氨酸羟化酶(tyrosine hydroxylase， TH)免疫化学染色方法分析内侧视前区多巴胺神经元的活性。

ConclusionThe difference of the main secondary metabolites is determined by the provenances in the root of Rumex gmelini planted in the same growth condition.

结论在同一生长环境下，毛脉酸模根中主要次生代谢产物含量的差异更多的是由其种源所决定的。

In this thesis, the concentration of graphite powder in the liquid nickel sulfamate and current density are chosen as parameters for composite electrodeposition of nickel and graphite powder. In addition, after electrodepositing, the graphite powder is oxidized into carbon dioxide through heating process for obtaining porous structure. Filter devices of various specifications can be made by controlling the hole dimension of the porous structure.

本研究为了制作出多孔洞结构，将在氨基磺酸镍电铸液中以不同的石墨粉浓度及电流密度为参数进行复合电铸，并且经由加热处理使石墨氧化成为二氧化碳以制造出多孔结构，根据这些多孔结构的孔径大小可以获得各种规格的过滤结构元件。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。