查询词典 lead

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。

Of course, lead paint is not the only cause of lead poisoning.

当然，含铅涂料并不是铅中毒的唯一原因。

Experts say that not all drugs have to be lead poisoning lead.

专家说，并不是所有的铅中毒都必须用药物排铅。

So with less lead in the environment, the problem of lead poisoning in children in the United States has been decreasing.

如此少的环境中的铅，在美国儿童铅中毒的问题已经减少。

Lead lead sb to do sthWhat led you to think so?

是什么事使你这么想的？

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。