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Surface-modified lead iodide nanorods were synthesized by one-step room temperature solid-state reaction of lead nitrate with potassium iodide in the presence of a nonionic surfactant, polyethyl- ene glycol.

以硝酸铅和碘化钾为原料，在体系中添加表面活性剂聚乙二醇，采用一步室温固相化学反应制备出聚乙二醇表面修饰的碘化铅纳米棒，利用X射线衍射，红外光谱，透射电子显微镜，扫描电子显微镜，热分析和元素分析等手段对其进行了表征。

Our main products are industrial grade lead oxide, electrolytic lead, the current capacity of 5000 tons / year.

公司主要产品有工业级氧化铅，电解铅，目前生产能力达到5000吨/年。

One may conclude that these two materials exist as a chemical mixture with distinct particles of lead oxide and lead.

人们可以认为这两种物质是作为一种化学混合物而存在的，它具有明显的氧化铅和铅的颗粒。

Uses lead, lead oxide and sulphuric acid.

它使用铅，氧化铅，和硫酸。

Lead-zinc double oxide has been developed. The activity of single lead oxide and zinc oxide has been studied.

用并流共沉淀法制备了氧化铅-氧化锌催化剂，发现焙烧温度、不同母体和母体配比对催化性能的影响规律。

However, the toxicity of lead oxide and its high vapor pressure during processing has led to a demand for alternative lead-free piezoelectric materials.

然而，铅的毒性以及在加工过程中容易挥发等特点导致需要寻找一种不含铅的压电材料来代替PZT。

Perhaps the most surprising thing about the lead pencil is that it is not lead at all. And it is not a pencil.

可能关于铅笔最让人吃惊的事情是它根本就不是铅做的，而英语PENCIL也不是笔的意义。

Perhaps the most surprising thing about the lead pencil is that it is not lead at all.

英语中的PENCIL源自拉丁语，是指用毛制作的细致的硬刷子。

The so-called "lead" in a pencil is not lead at all, but chiefly a different form of carbon called.

铅笔中所谓的铅，并不是"铅"，而主要是一种不同形态的炭，称为石墨。

Paint containing lead is a major cause of lead poisoning in children.

油漆中的铅是儿童中毒的主要原因。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48