【中文版】

八大贵金属是指金、银、铂、钯、铑、铱、钌、锇这八种元素。这些元素在自然界中十分稀有，因此被视为贵金属。

其中，黄金和白银是最为人们所熟知的贵金属，它们在投资、珠宝、电子工业等领域都有着广泛的应用。铂和钯主要用作催化剂和首饰制作，而铑和铱则用于制造高温合金和电子元件。铱是世界上最耐腐蚀的金属，可以抵抗几乎所有化学物质的侵蚀。钌和锇则较少用于工业生产，而是被视为投资和收藏的珍品。

这些贵金属都具有不同的物理和化学性质，如密度、熔点、导电性、耐腐蚀性等，这些性质使得它们在不同的领域中有着独特的应用价值。例如，金和银的导电性和延展性好，可以用于制造电子产品和首饰；铂和钯的催化性能强，可以用于化工和汽车尾气处理等领域；铑和铱的高温性能好，可以用于制造航空发动机和电子元件等。

八大贵金属由于其稀有性和广泛的应用价值，一直以来都是市场上的热门投资品种。投资者可以通过购买贵金属ETF、实物金条、银币等投资方式进行投资，以实现资产保值和增值。

【英文版】

The eight precious metals refer to gold, silver, platinum, palladium, rhodium, iridium, ruthenium, and osmium. These elements are rare in nature and are therefore considered precious metals.

Among them, gold and silver are the most well-known precious metals, which are widely used in investment, jewelry, electronic industry and other fields. Platinum and palladium are mainly used as catalysts and in the production of jewelry, while rhodium and iridium are used to manufacture high-temperature alloys and electronic components. Iridium is the most corrosion-resistant metal in the world, which can resist the erosion of almost all chemical substances. Ruthenium and osmium are less used in industrial production, but are considered as treasures for investment and collection.

These precious metals have different physical and chemical properties, such as density, melting point, conductivity, corrosion resistance, etc., which make them have unique application value in different fields. For example, gold and silver have good conductivity and malleability, which can be used for manufacturing electronic products and jewelry; platinum and palladium have strong catalytic performance and can be used in chemical and automotive exhaust treatment fields; rhodium and iridium have good high-temperature performance and can be used for manufacturing aero-engines and electronic components.

The eight precious metals have always been popular investment items in the market due to their rarity and extensive application value. Investors can invest in precious metal ETFs, physical gold bars, silver coins, etc. to achieve asset appreciation and appreciation.