锌的

We have calculated the electronic structure of zinc blende structure ZnS under different high pressures by means of plane wave pseudo-potential methodwith generalized gradient approximationin this paper.

引言ZnS是Ⅱ-Ⅵ族半导体材料中一种重要的半导体材料[1—3]，它有闪锌矿和纤锌矿两种不同的结构，有着非常宽的带隙，具有优良的电光特性和广泛的应用前景，已经越来越得到人们的关注。

As a preliminary work we prepared bisorganozinc halides directly from diiodide and zinc powder, and investigated their reaction with acyl chloride to give diketone, the reaction mechanism also proposed on the basis of experiments and the literatures.

第三章：带官能团的双有机卤化锌试剂和酰氯的反应研究本章首次探讨了带官能团的双有机卤化锌试剂的制备及其与芳香族酰氯的反应研究。

In the practice of mineral process, the dotation of marmatite is one of the dii'l'iculL problems of polymetal sulphide separable flotation, which makes it difficult to increase the recovery of zinc mineral at the marmatite mine in wenshan ,which makes it even more difficult because of its ore characteristic.

选矿实践中，铁闪锌矿的浮选是目前多金属硫化矿分离的难题之一，文山铁闪锌矿的浮选回收率及品位由于矿石特性所致，要使其达到较好的指标，具有较大的难度。

The ore of arsenopyrite is very easy to float, but hard to inhibit, the experiment creatively forward to the "Select I" in the middling re-election, and then incorporated into the final railings discharge, re-election of concentrate back to roughing of the closed-circuit process. Succeeded in separation the iron of marmites and arsenopyrite the concentrate grade obtained Zn 41.56%, recovery rate is 93.08%, comprehensive collect silver, gallium, indium and other rare metals.

毒砂可浮性很好，易浮难抑，本试验创造性地提出了精选I的中矿再选、再选尾矿并入最终尾矿排放、再选精矿返回粗选的新闭路流程，成功地实现了铁闪锌矿与毒砂的有效分离，获得了锌精矿品位41.56％、回收率93.08％的指标，同时综合回收了银、镓和铟等稀贵金属。

The regular script sharp gauze production factory attendance "township of the Chinese silk screen", this factory manager the time is engaged in the gauze and silk screen's production and the sale, my factory product specification is complete, quality excellent, including: The stainless steel mesh, the ectrowelding net, the heavy hexagonal network, the ore strainer, the metal net, the round hole net, the security net, the copper screen, the steel plate lattice-work, the ginning network, the safety net, cancel the flowered net, the extra wide net, the window screening, the guard rail net, the road guard rail, the railroad guard rail, the airport guard rail, the factory railing, the garden guard rail, the black cloth and silk, to breed the cage to have, the plastic even net, the galvanization silk and so on each kind of silk screen, widely uses in professions and so on petroleum, chemical industry, building, spinning and weaving, medicine, aviation, astronautics.

本产品采用优质低碳钢丝、不锈钢丝焊接而成；分为热镀锌、电镀锌、PVC涂塑、浸塑、特种电焊网片；具有极强的防腐蚀抗氧化等特点。它的用途很广泛，包括：工业、农业、建筑、交通运输、采矿、球场、草坪、养殖等各行业的护栏、装饰、机械防护等楷锐金属丝网制品厂地处&中国丝网之乡&，本厂长期从事金属丝网及丝网的生产和销售，我厂产品规格齐全，质量精良，主要有：不锈钢网、电焊网、重型六角网、矿筛网、金属网片、圆孔网、防盗网、铜网、钢板网、轧花网、安全网、勾花网、宽幅网、窗纱、护栏网、公路护栏、铁路护栏、机场护栏、工厂围栏、花园护栏、黑丝布、养殖笼具、塑料平网、镀锌丝等各种丝网，广泛用于石油、化工、建筑、纺织、医药、航空、航天等行业。

The formation mechanism of the cerium compounds on the zinc powder subst rate was preliminarily discussed , and the effect s of the cerium compounds on the cycle and discharge properties of the zinc elect rodes were also investigated.

L Ce (NO 3) 3溶液中成功制得含有铈化合物的锌基复合粉，探讨了铈化合物在锌粉基体上的形成机制，并研究了锌基复合粉中铈化合物对锌电极的循环放电性能的影响。

This paper mainly introduced present situation of study zinc chrome coat, the composition of coat liquid, technological characterstics and advntages to be compared with conventional plating and hot plating technics.

锌铬膜涂层的优良耐蚀性能、环境友好、无氢脆性、涂层均匀等特点得到了广泛的应用。介绍了锌铬膜的研究现状、涂液组成、工艺特点及与传统电镀、热镀工艺相比的先进性等

Stems shall be of dezincificationresistant silicon bronze ASTM B 371 or low-zinc alloy B 99, non-asbestos packing, TFE seat disc and malleable or ductile iron handwheel

阀杆材质是符合美国材料试验协会ASTM B371标准的抗失锌现象的硅青铜或B 99标准的低锌合金，不含石棉的填料，聚四氟乙烯阀座阀瓣，可锻或球墨铸铁手轮。

Stems shall be of dezincification-resistant silicon bronze ASTM B 371 or low-zinc alloy B 99, nonasbestos packing and malleable or ductile iron handwheel.

阀杆材质是符合美国材料试验协会ASTM B371标准的抗失锌现象的硅青铜或B 99标准的低锌合金，不含石棉的填料，可锻或球墨铸铁手轮。

Sodium glutamate monosodium glutamate in the blood with the 宝宝 happened in the specific binding of zinc to generate a kind of can not be absorbed and used the material, resulting in zinc deficiency in infants so that they reduce appetite and affect normal development.

味精中的谷氨酸钠会与宝宝血液中的锌发生特异性结合，生成一种不能被吸收利用的物质，从而导致婴幼儿缺锌使他们食欲降低，影响正常的发育。

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。