The hydrometallurgy technics of Zinc system in the Northwestern Lead and Zinc Smelter uses the purification of reverse adding Antimony salt to get rid of the impurity in the Zinc Sulfate solution.

西北铅锌冶炼厂锌系统湿法冶炼工艺采用反向锑盐法净化除去硫酸锌溶液中的杂质。

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Its standard configuration includes a solar thermal system which is invisibly integrated into the zinc facade, as well as a geothermal system with a high-efficiency heat pump.

其标准配置包括一个太阳能集热系统，它不露痕迹地与锌表层融为一体，以及一个拥有高效热泵的地热系统。

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Zinc is important for growth and your immune system. Zinc is found in whole grains (refined grains are not sources of zinc), fortified breakfast cereals, dairy products, soy foods, nuts, and legumes.

锌对于成长发育和免疫系统都是非常重要的，锌在全谷类(精炼谷除外)，早餐粥，乳制品，豆制品，果仁类和豆类植物中均可发现。

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Researchers say they have gained a key insight into how zinc helps the immune system fight infection.

BBC: Zinc 'keeps immune system in check'

Although research has highlighted the importance of zinc for the immune system, because the mineral has many complex roles in the body it is not understood in any detail how it helps fight off infection.

BBC: Zinc 'keeps immune system in check'