base metal

简明释义

贱金属

英英释义

例句

1.In the recycling industry, base metal can often be repurposed into new products.

在回收行业中，基础金属通常可以重新利用于新产品。

2.The jewelry was made from a cheap alloy of base metal.

这件珠宝是用廉价的基础金属合金制作的。

3.The artist preferred working with base metal for her sculptures.

这位艺术家更喜欢用基础金属制作她的雕塑。

4.The base metal used in this construction is known for its durability.

这项工程中使用的基础金属以其耐用性而闻名。

5.Many coins are minted using base metal to reduce production costs.

许多硬币使用基础金属铸造，以降低生产成本。

作文

Base metals are often overlooked in discussions about precious metals like gold and silver. However, understanding what a base metal (基础金属) is can provide valuable insights into the world of metallurgy and economics. Base metals are defined as non-precious metals that are more abundant and less expensive than precious metals. Common examples include copper, aluminum, lead, nickel, and zinc. These metals play a crucial role in various industries, from construction to electronics, and their importance cannot be understated.One of the primary characteristics of base metals (基础金属) is their tendency to oxidize and corrode when exposed to air and moisture. This property makes them less desirable for applications where durability and resistance to environmental factors are critical. For instance, while copper is widely used in electrical wiring due to its excellent conductivity, it requires protective coatings to prevent tarnishing and corrosion over time.In contrast, precious metals like gold and platinum do not corrode easily, which is one reason they are favored for jewelry and investment. The lower market value of base metals (基础金属) means they are often used in bulk for manufacturing processes. For example, aluminum is extensively utilized in the automotive industry because it is lightweight and cost-effective, helping manufacturers reduce vehicle weight and improve fuel efficiency.The demand for base metals (基础金属) fluctuates based on various economic factors, including industrial growth, technological advancements, and global market trends. During periods of economic expansion, the demand for these metals tends to rise as construction and manufacturing activities increase. Conversely, during economic downturns, the demand may decrease, leading to lower prices in the commodities market.Another significant aspect of base metals (基础金属) is their role in recycling. Many base metals can be recycled without losing their properties, making them an environmentally friendly option. For instance, recycled aluminum saves about 90% of the energy required to produce new aluminum from ore. This not only reduces energy consumption but also minimizes waste and the environmental impact associated with mining operations.Investors often turn to base metals (基础金属) as a means of diversifying their portfolios. While they may not offer the same level of security as precious metals, they can still provide significant returns, especially when demand surges due to increased industrial activity. Understanding the market dynamics of these metals can help investors make informed decisions.In conclusion, base metals (基础金属) are essential components of modern industry and economy. Their properties, applications, and market behavior are crucial for anyone interested in metallurgy, economics, or environmental sustainability. By recognizing the significance of these metals, we can better appreciate their role in our daily lives and the global economy.