hard coal

简明释义

无烟煤

英英释义

例句

1.Due to its high carbon content, hard coal is an efficient fuel source.

由于其高碳含量，硬煤是一种高效的燃料来源。

2.The price of hard coal has fluctuated greatly over the past decade.

在过去十年中，硬煤的价格波动很大。

3.The power plant primarily uses hard coal for electricity generation.

这座发电厂主要使用硬煤来发电。

4.They decided to switch from natural gas to hard coal for their heating needs.

他们决定将供暖需求从天然气转为硬煤。

5.In many countries, hard coal mining has been a significant industry.

在许多国家，硬煤开采一直是一个重要的产业。

作文

The world has been heavily reliant on fossil fuels for energy production, and among these, coal has played a significant role. One specific type of coal that is often discussed is hard coal, which is also known as anthracite. This type of coal is characterized by its high carbon content and low impurities, making it one of the most efficient forms of coal available. The significance of hard coal in energy production cannot be overstated, as it provides a substantial amount of energy per unit compared to other types of coal.The formation of hard coal occurs over millions of years under high pressure and temperature conditions, leading to a dense and compact structure. This process results in a fuel that burns cleaner and produces more heat than softer varieties of coal, such as lignite or bituminous coal. Because of its high calorific value, hard coal is particularly popular in industries that require large amounts of heat energy, such as steel manufacturing and power generation.Moreover, the environmental implications of using hard coal are a topic of ongoing debate. While it burns cleaner than other coal types, it still releases carbon dioxide and other pollutants into the atmosphere. With the global push towards renewable energy sources, many countries are reevaluating their dependence on hard coal and seeking alternatives that are less harmful to the environment. This shift is essential for addressing climate change and reducing greenhouse gas emissions.In some regions, hard coal mining has been a crucial economic activity, providing jobs and supporting local economies. However, the extraction process can lead to significant environmental degradation, including habitat destruction and water pollution. As such, there is a growing need for sustainable practices in the coal industry. Innovations in technology may allow for cleaner extraction methods, and efforts to rehabilitate mining sites can help mitigate some of the negative impacts associated with hard coal mining.In conclusion, hard coal is an important energy resource that has shaped industrial development and continues to play a role in the global energy landscape. While it offers benefits in terms of efficiency and energy output, the environmental concerns associated with its use cannot be ignored. As we move forward, balancing the economic advantages of hard coal with the urgent need for sustainability will be crucial in shaping a cleaner, greener future. The transition to renewable energy sources may ultimately determine the fate of hard coal in our energy mix, but for now, it remains a significant player in the energy sector.

世界对化石燃料的能源生产依赖程度很高，其中煤炭发挥了重要作用。其中一个经常被讨论的特定类型的煤是硬煤，也称为无烟煤。这种类型的煤以其高碳含量和低杂质为特征，使其成为可用的最有效的煤炭形式之一。硬煤在能源生产中的重要性不容小觑，因为它每单位提供的能量远大于其他类型的煤。硬煤的形成是在高压和高温条件下经过数百万年而成，导致其结构致密且紧凑。这一过程使得这种燃料比其他软煤（如褐煤或烟煤）燃烧更清洁、产生更多热量。由于其高热值，硬煤在需要大量热能的行业中尤其受欢迎，例如钢铁制造和发电。此外，使用硬煤的环境影响也是一个持续争论的话题。尽管它比其他类型的煤燃烧更清洁，但仍会向大气中释放二氧化碳和其他污染物。随着全球推动可再生能源的趋势，许多国家正在重新评估对硬煤的依赖，并寻求更少危害环境的替代品。这一转变对于应对气候变化和减少温室气体排放至关重要。在某些地区，硬煤开采一直是重要的经济活动，为当地经济提供了就业机会。然而，开采过程可能导致显著的环境退化，包括栖息地破坏和水污染。因此，煤炭行业迫切需要可持续实践。技术创新可能允许更清洁的开采方法，而恢复采矿地点的努力可以帮助减轻与硬煤开采相关的一些负面影响。总之，硬煤是一种重要的能源资源，塑造了工业发展，并继续在全球能源格局中发挥作用。虽然它在效率和能量输出方面提供了好处，但与其使用相关的环境问题不能被忽视。随着我们向前发展，在经济优势和可持续性之间取得平衡，对于塑造一个更清洁、更绿色的未来至关重要。过渡到可再生能源可能最终决定硬煤在我们的能源组合中的命运，但目前，它仍然是能源部门的重要参与者。