Many electronic products rely on rare metals.

许多电子产品都依赖于稀有金属。

Rare metals have a wide range of applications in industry.

稀有金属在工业中有着广泛的应用。

Protecting rare metals resources is very important for the environment.

保护稀有金属资源对环境非常重要。

Scientists are researching how to extract rare metals more efficiently.

科学家们正在研究如何更有效地提取稀有金属。

The prices of rare metals have risen significantly in recent years.

稀有金属的价格近年来大幅上涨。

This type of furnaces is ideal especially for analysis of rare metals and in assaying and other processes aimed at determination of the contents of are metals in materials.

该类型熔炉是分析稀有金属、验定及其他旨在确定材料中稀有金属成分过程的理想产品。

In the present paper, the structure and properties of morin and its new application in fluorometric analysis of non ferrous metals and rare metals are reviewed.

本文介绍了桑色素的结构与性能，论述了桑色素在及稀有金属荧光光度分析中的新应用。