查询词典 alkaline

Performance test of composed type inhibitor The inhibition efficiency of composed type inhibitor for zinc in alkaline zincate solutions is nearly the same as 4% Hg.

对实际电池的测试结果表明：含有HSJ的无汞LR03型碱性锌锰电池的有关性能指标达到或超过了QB1972-94规定的国家行业标准。

The main work of this thesis is to research the sulphate bath, we find that the sulfate system has the advantage of slight acidic choloride electrolyte system and alkaline zincate system. The solution of sulphate system is very simple and easy to maintain and high current efficiency. Furthermore, the technology has the advantage of lower plating cost and broader width of the temperature.

本论文的主要内容是以文献中报道不多的全硫酸盐体系电镀锌镍合金为研究对象，发现全硫酸盐体系结合了上述两种类型的优点，镀液成分比较简单，容易维护，对材料、设备的腐蚀比较小，阴极的电流效率高，而且该工艺具有成本较低和温度范围宽等优点。

An additive, ZFA was developed for zinc-iron alloy plating from alkaline zincate bath.

锌基合金电镀层由于具有优良的耐蚀性而受到人们的关注。

Thus the alkaline zincate continuous zinc plating technology for steel sheet was investigated, with the emphasis being placed on the effects of the bath composition and process conditions on the current efficiency. The throwing power of the plating solution was tested using Hull's cell 8 points thickness method, and the adhesion strength of the coating was examined by heating and shock cooling test.

为此，研究了用于薄钢板连续电镀的锌酸盐镀锌工艺，重点研究了镀液成分及工艺条件对电流效率的影响，用Hull槽8点法测试了镀液的均镀能力；用加热骤冷法测试了镀层的结合力，并对薄钢板连续电镀锌的前后处理工艺作了探讨。

Highly oriented ZnO nanoneedle/nanorods arrays have been fabricated by direct oxidation of zinc foil in alkaline zincate ion solution at near room temperature.

在室温附近溶液中直接界面反应大面积的制备了ZnO纳米针/棒阵列。

Zyme aeti~,ity,the enzyme can also be inhibited by EDTA.Therefore,the low temperature alkaline Droteaseis a DeW type of serine protease.

与其他工业生产菌株所产碱性蛋白酶的性质进行了比较，以期为进一步开发应用奠定基础。

To express Alkalineβ-mannanase highly in B. subtilis,we investigated expression using zymotic medium.

在LB培养基中进行诱导培养后可以表达19.2 U/mL碱性β-甘露聚糖酶。

32 U/mL enzyme activity can be detected in medium after fermentation. By optimizing the zymotic medium and fermentation conditions, recombination B. subtilis can express as high as 110.02 U/mL of Alkalineβ-mannanase. Cycle of fermentation needs 5 days(4 days is needed in induced expression ), then enzyme activity maintained at the highest level, less than 5 % enzyme activity was lost in next 2 days.

为了继续对碱性β-甘露聚糖酶进行高表达研究，试验采用了芽孢杆菌发酵培养基来进行产酶研究，初步诱导酶活达到29.32 U/mL，通过对发酵条件的优化，该重组枯草芽孢杆菌的产酶水平有了大幅度的提高，最高可达110.02 U/mL。

Changsha 410083, China）Abstract: The alkaline wastewater containing chromiumCr(VI was treated with C-1 strain identified as achromobacter isolated from sludge nearby the chromium slag pole site. The optimum conditions of growth of the strain and factors affecting reduction efficiency of Cr, such as the temperature, the pH value of solution, the concentration of Cr and the treatment time, were studied.

摘 要：用从铬渣堆埋场附近的污泥中分离到的无色杆菌属C-1菌株，对碱性含铬废水进行生物处理，研究了该菌的生长条件，并探讨了温度、pH值、Cr初始浓度及作用时间等因素对Cr还原的影响。

Methods Serum containing achyranthes root was prepared, human mesenchymal stem cells were separated and amplified, MTT assay was used to access the effects of serum containing achyranthes root on human mesenchymal stem cells in vitro, alkaline phosphatase and osteocalcin were assayed to reflect the variations of stem cell differentiation, and the expression of osteogenic transcription factors with RT-PCR.

制备牛膝含药血清，分离与扩增人间充质干细胞，MTT法检测牛膝含药血清对体外培养的间充质干细胞增殖作用的影响，检测碱性磷酸酶与骨钙素以反映细胞分化水平的改变，RT-PCR检测成骨相关转录因子的表达。

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。