锌的

By analyzing the performance and comparing the minimum section area of grounding electrode of copper with galvanized steel,the connection method with exothermic fireclay fusion splicing of copper grounding electrode with good performance is introduced.

对铜与镀锌钢的性能和接地体最小截面进行比较分析；介绍了效果良好的铜接地体的放热火泥熔接的连接方式；提出铜材接地网实施的优化措施，并结合工程实践，对铜材接网及镀锌钢接地网进行了技术经济比较。

The result shows that the content of pigment and filler in coatings, the ratio of epoxy resin to curing agent have important effect on film performance. Comparing with basic silicon lead chromate, the antirust capacity of zinc phosphate is higher, so zinc phosphate is an excellent active pigment at safety and antirust performance.

无毒的磷酸锌与含铅的碱式硅铬酸铅两种活性颜料的防锈性能比较，在本涂料体系中以磷酸锌为活性颜料的涂膜，其防锈性能优于以硅铬酸铅为活性颜料的涂膜。

Each state of glutamic acid and zinc ion in aqueous solution in different pH conditions was calculated by computer, and the scattergram was produced.

通过编程计算谷氨酸和锌离子的各种存在形式随pH值变化的拟合分布图，研究了在硫化锌法原子吸收间接测定谷氨酸时的pH对原子吸收响应的影响及络合反应的机理。

The results show that Bi and Sb are mainly distributed on grains and grainboundaries, and Bi on grainboundaries there are mainly simple substance Bi particles, Sb in grains are intermetallics containing stibium. The tensile strength, yield strength, elongation and variation of area of halfhard brass containing bismuth and stibium are 478.9 MPa, 295 MPa, 15.1% and 29.3% respectively. Corresponding to HPb59-1, the cutting property of brass containing bismuth and stibium is excellent. The brass containing bismuth and stibium shows excellent dezincification corrosion resistance, and the depth is 323 μm.

结果表明：添加的Bi和Sb主要以单质或化合物方式存在于无铅黄铜的相内和相界处，Bi以单质颗粒存在于相界处，Sb以化合物形式存在于相内，这对提高合金切削性能有利；添加Bi和Sb黄铜的抗拉强度为478.9 MPa，伸长率为15.1%，断面收缩率为29.3%，屈服强度大约为295 MPa；添加Bi和Sb黄铜的切削性能比HPb59-1铅黄铜的优，合金的脱锌腐蚀性能良好，脱锌层厚度约为323 μm。

In applications, the complex structural phases of ZnO tetrapod nanocrystals were investigated and determined.The results showed the wurtzite and zinc-blend phase in the leg part and the core part,respectively,which also agreed well with the Raman spectra and calculation data.

将建立的纳米微区结构相的测量分析技术应用于四脚ZnO的脚和芯的结构测量，证明脚处的纤锌矿结构和芯部的闪锌矿结构。

Variegate had higher protein content and lower fat content and had microelements of Fe, Zn and Cu with some amount and the content of Zn, Cu, Pb and Cr were all lower than the limits of the metals in national free-pollutant seafood safety requirements (GB18406.4-2001) and could meet the microelements requirements of human body.

结论］青蛤和杂色蛤的蛋白质含量较高，脂肪含量较低，含有一定量的微量元素铁、锌和铜，且锌、铜、铅、铬的含量均低于我国无会害水产品安全要求(GB18406.4-2001)中的限量标准，可满足人体对微量元素的部分需要。

In industrialized countries mild zinc deficiency symptoms such as white spots on finger nails, rough skin and dull looking hair can often be corrected by supplying the body with the right amount of zinc each day.

在工商业发达的国家，轻微的锌不足症状，如指甲上的白点、粗糙的皮肤和没有光泽的头发，都可以靠每天服用适量的锌来改善情况。

Through thermodynamic calculation and electrochemical analysis of multiple redox reactions on the minerals of galena, sphalerite and pyrite in different system, it could be found that pulp chemical environment in which hydrophobe of collectorless flotation produced was beneficial to reduce collector dosage in existing flotation system; electrochemical analysis on sphalerite had been engaged; and pulp chemical environment of OPF for lead-zinc-iron sulfide minerals and relevant selective measure for collector and modifer were established.

通过对方铅矿、闪锌矿、黄铁矿在水体系、调整剂体系、捕收剂体系中由局部电池造成的多种氧化—还原反应的热力学分析和电化学测试，补充和完善了铅锌铁硫化矿浮选电化学理论。提出了矿物表面无捕收剂疏水体生成的矿浆化学环境有利于降低现有浮选体系中捕收剂用量的观点；成功地进行了闪锌矿的电

The results show that jamesonite and pyrrhotite have good floatability in the pH range of 2-10 and marmatite has good floatability in the acid and it is difficult to separate these minerals. In the pH range of 6-8, the separation of jamesonite and pyrrhotite, marmatite is possible when using mercaptoacetic acid and mercaptoethanol as depressants. In case of the presence of Cu2+ ion, however, it is difficult to separate the three minerals. Infrared spectrum demonstrates that there are a number of function groups such as —SH,—COOH,—OH in the molecular structure of depressant.

结果表明：用丁黄药作捕收剂，脆硫锑铅矿和磁黄铁矿在pH 2~10范围内都有良好的可浮性，铁闪锌矿在酸性条件下可浮性好，三者分离困难；在pH 6~8之间，采用巯基乙酸和巯基乙醇作抑制剂，脆硫锑铅矿与磁黄铁矿和铁闪锌矿的分离是可能的；但铜离子存在时， 3种矿物之间的选择性分离是难以实现的。

The performance of the selected coating systems was experimentally verified,while some of the selected costing systems were brought into engineering practice.As the results,it was suggested to use a coating system composed of zinc-rich epoxy primer,micaceous ferric oxide epoxy intermediate,and modifie...

结果显示，对完全浸泡的设备，采用环氧富锌底漆+环氧云铁中间漆+改性环氧面漆的涂层体系有很好的防护效果；对干湿交替的设备采用环氧富锌底漆+环氧云铁中间漆+丙烯酸聚氨酯面漆的防护体系具有良好的防护性能，预计其防护寿命可达到8a以上。

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。