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- The paper introduces ingredients of waste lead accumulator and effective way of produceing lead alloys and lead salt. 本文介绍了废铅蓄电池的组成和用以制取铅合金及铅盐的有效方法。
- The recovery of lead from waste lead accumulator by wet process and the preparation of tribasic lead sulfate are studied. 研究了湿法回收废铅蓄电池,并利用其中的有效铅成分制备三碱式硫酸铅。
- The coordination of adenine substituted to the cental zinc leads to self assembly. 结果表明,腺嘌呤取代基与中心金属锌的轴向配位驱动了自组装。
- In the twenty years that the Clean Air has mandated unleaded gas use in the United States,the lead accumulation worldwide has decreased significantly. 美国制定了《清洁空气法案》要求使用无铅汽油，在此法案实施的二十年中，世界范围内的铅沉淀物明显减少。
- An alloy composed of lead, tin, and zinc. 铅锡锌化合物由铅、锡和锌组成的一种合金
- The experiment indicates that greenbeans extractive can increase lead excretion and reduce the lead accumulation in the rats. 提示绿豆提取物具有促进铅的排出和减少体内铅蓄积的作用。
- Thermodynamic Analysis of Reversibility on Lead Accumulator 铅酸蓄电池可逆性的热力学分析
- Test and Probe into the Regenerated Method of Lead Accumulator 铅蓄电池再生方法的试验与探讨
- Keywords waste lead accumulator;wet method;tribasic lead sulfate; 废铅蓄电池;湿法;三碱式硫酸铅;
- Brass is an alloy of copper and zinc. 黄铜是铜和锌的合金。
- Brass is formed by the fusion of copper and zinc. 黄铜是由铜和锌熔合制成的。
- The horse forged ahead the lead in the homestretch. 那匹马在最后阶段突然加速跑到前面。
- Shirley will try out for the lead in the play. 雪莉将参加该剧主角的选拔演出。
- Zinc can also help the body fight lead absorbance. 锌也可以帮助体内减少对铅的吸收。
- Excessive patriotism can lead to xenophobia. 爱国主义过了头即可导致仇视一切外国人。
- Zinc can also help the body fight lead absorption. 锌元素也能帮助人体抵抗铅的吸收。
- Lead aprons shield people from radiation. 铅做的工作裙可使人免进辐射。
- Lead, iron, copper, tin, and zinc are base metals. 铅、铁、铜、锡和锌都是基本金属。
- Graphite is used in making lead pencils. 石墨常被用来做成铅笔。
- You should first put a small piece of zinc plate into the cup. 首先，要向杯子里放一小片锌板。
