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This is a professional production the company of new and high technology of equipment of instrument of test of electric power of management high pressure, equipment of test of high pressure of main development electric power and power source, electric power checks instrument appearance, wattmeter to measure an instrument to wait for a product, apply extensively at a variety of industries such as electric power, irrigation works, oil.

这是一家专业生产经营高压电力测试仪器设备的高新技术企业，主要开发电力高压试验设备及电源、电力测试仪器仪表、电力计量仪器等产品，广泛应用于电力、水利、石油等多种行业。

Due to the moving mechanical parts, the conventional mechanical valves not only incur the following problems such as the structural complexity, large volume size, high precise machining, easy wear-out, and high cost, but also incur the control difficulty, slow response, high noise, and low reliability.

传统的液压控制阀由于存在活动的机械部件，不仅结构复杂、体积大、加工要求高、容易磨损、成本高，而且还存在不易控制、响应慢、工作噪声大、工作可靠性低等问题。

We have calculated the electronic structure and optical properties of zinc blende structure ZnSe under different high pressure by means of plane wave pseudo-potential methodwith generalized gradient approximationin this paper.The total energy,density of state,energy band structure,and optical absorption and reflection properties under high pressure are calculated.Furthermore,we analyzed the change of electron structure,band structure and optical properties under high pressure using the results of experiment and theory

运用密度泛函理论体系下的平面波赝势和广义梯度近似方法，利用第一性原理计算了不同的压强下ZnSe晶体闪锌矿结构，得到了它的平衡晶格常数、总能量、电子态密度分布、能带结构、光反射与吸收系数等性质，具体讨论了高压下ZnSe的电子结构，并且结合实验结果定性地分析了高压下的光学性质。

Compared with traditional machine tool, parallel machine tool has such priories as high response velocity ,high accessional technology value , and high adaptability to circumstance.

与传统机床相比，并联机床具有刚度重量比大、响应速度快、环境适应性强和技术附加值高等优点。

One novel polysaccharide—bacterial celluloseproduced by Acetobacter xylium have many distinguishing features, such as high purity, high crystalline great strength , high hydrophilic and good adsorption capacity.

细菌纤维素是微生物发酵过程中分泌的胞外多糖，由于其结构规整，聚合度强，纯度极高，结晶度高等特点，使其具备了独特的性能如高的吸水持水性和高的吸附性能等日益受到人们的关注。

These revealed that high dose copper can destroy function of erythrocytic membrane and cause oxidative stress, which may be one of the mechanisms of goat erythrocytic haematolysis induced by high dose copper. 3 High copper caused the increase of osmotic fragility of erythrocyte and AGLT50 in acor glycerine solution.

高铜导致红细胞膜超氧化物歧化酶和谷胱甘肽过氧化物酶活性降低，氧化产物丙二醛含量增多，引起红细胞抗氧化功能降低，诱发氧化胁迫，使得红细胞处于氧化应激状态，这可能是高铜致羊红细胞溶破机制之一。

Chemiluminescent immunoassay is one of the advanced immunoassay ofnon-radioisotopic immunoassay because of its high sensitivity, wide dynamic range,high accuracy, stable labeled protein, full automation and extensive application field.CLIA using acridinium ester derivatives as chemiluminescent label has advantages oflow background, high signal-to-noise ratio, no need of catalyst and simpleluminescence system. Different aspects associating the DMAE·NHS-based CLIA were studied in thisthesis, including synthesis of acridinium ester, chemiluminescentcharacteristics of DMAE·NHS, labelling antibody or streptavidin with DMAE·NHS,two-site sandwich chemiluminescent immunoassay for TSH, two-sitesandwich chemiluminescent immunoassay involved biotin-streptavidinsystem for TSH, and competitive chemiluminescent immunoassay usingbiotin-streptavidin system for TT〓. The desired acridinium ester, DMAE·NHS, was synthesized according to thereference method with some modifications. The products were identified by IR, NMR,MS and elemental analysis. In our method, KOH was used in place of NaOH tosynthesize benzyl ester of 3,5-dimethyl-4-hydroxybenzoic acid,2',6'-dimethyl-4'-(n-succinimidyloxycarbonyl) phenyl-acridinium-9-carboxylate waspurified on a silica gel column with chloroform/ethylacetate(4:1, v/v) as eluent andfurther purified by triturating with hexane/acetone(2:1, v/v).

DMAE·NHS的合成是本论文的关键和难点，我们对文献方法进行改进：文献方法用氢氧化钠与3，5-二甲基-4-羟基苯甲酸反应制得3，5-二甲基-4-羟基苯甲酸钠，再用3，5-二甲基-4-羟基苯甲酸钠与苄氯作用制备3，5-二甲基-4-羟基苯甲酸苄酯，我们用氢氧化钾代替氢氧化钠，使合成取得成功；在合成2'，6'-二甲基-4'-苯基-吖啶-9-甲酸酯时，文献方法对粗产品进行两次硅胶柱层析纯化，第一次柱层析用氯仿／乙酸乙酯(4∶1，V∶V)作溶剂和淋洗剂，第二次柱层析用己烷／丙酮(2∶1，V∶V)作溶剂和淋洗剂，按照文献方法得到的不是所需要的化合物，我们只进行第一次柱层析纯化，然后用己烷／丙酮(2∶1，V∶V)进行研磨，过滤，洗涤，除去溶于己烷／丙酮(2∶1，V∶V)的部分，得到所需要的产品。

Aerostatic bearings have been widely applied in high-speed and high-precision systems, but the need of high precision machining and low loading capacity retard their development.

中文摘要气静压轴承被广泛应用於高速与高精度系统中，但是高精度加工之需求及低承载能力也阻碍了它的发展。

The content of mineral elements in ripe fruits of M.sieversii from 78 seedings at Mohe Town,Gongliu Country were analyzed using Atomic Absorption Spectrophotometer.The results indicated that M.sieversii seedings presented considerable genetic variations in content of mineral elements with the range of variation coefficients from 24.2% to 54.0%.So it has large potential for further selection.Four elite seedlings were selected,namely large fruit type,high Ca content type,high Zn content type and high damascenone content.As the predominant component of Ily wild fruit tree forest,Malus sieversii had occupied an area of 9300ha.But the inherent reproduction system of M.sieversii and genetic diversity of the species were destructed in different degrees,as a result of farming assart,over grazing and damage by Agrilus mali.

上述结果支持&新疆野苹果可能是栽培苹果祖先种&的结论；②对巩留县莫舍乡的新疆野苹果78个实生株系果肉组织Ca、Mg、Fe、Zn、Cu、Mn6种矿质营养元素进行测定的结果表明，每种矿质元素含量单株间差异显著，变异系数在24.2％～54.0％，遗传多样性丰富，进一步选择的潜力很大；③根据新疆野苹果果实形态、香味物质和矿质元素含量等的测定结果，初步筛选出了大果型、高钙型、高锌型和大马酮型等4个特异性状单株；④调查发现，由于农田开垦、过度放牧以及苹果小吉丁虫的蔓延危害，目前伊犁野果林面积逐年减少，野苹果固有的繁育体系和遗传多样性受到不同程度的破坏。

Alcaligenes eutrophus WSH3 was selected as the strain for the production of polyβ-hydroxybutyrate and copolymer of 3-hydroxybutyrate and 3hydroxyvalerate . This study is aimed at finding an operative way leading to high PHB and PHBV productivity, high yield coefficient and high content of PHB and PHBV. The main research results are as follows

本文以真养产碱杆菌(A.eutrophus)WSH3为聚-β-羟基丁酸和3-羟基丁酸与3-羟基戊酸的共聚物的生产菌株，以实现PHB和PHBV发酵过程的高的生产强度、高的产物对基质的产率系数和高的聚合物含量为目标，进行了PHB及PHBV发酵条件的研究，主要研究内容和结果如下

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。