Steam coal

简明释义

动力煤

英英释义

例句

1.Many countries are transitioning from steam coal to renewable energy sources.

许多国家正在从蒸汽煤转向可再生能源。

2.Due to its high carbon content, steam coal is often criticized for its environmental impact.

由于其高碳含量，蒸汽煤常常因其对环境的影响而受到批评。

3.Investors are wary of companies heavily reliant on steam coal due to regulatory changes.

由于监管变化，投资者对那些严重依赖蒸汽煤的公司持谨慎态度。

4.The power plant primarily uses steam coal for generating electricity.

这座发电厂主要使用蒸汽煤来发电。

5.The price of steam coal has fluctuated significantly over the past year.

过去一年中，蒸汽煤的价格波动很大。

作文

Steam coal, often referred to as thermal coal, is a crucial resource in the energy sector. It is primarily used for generating electricity and is one of the most abundant fossil fuels available globally. The significance of steam coal (蒸汽煤) cannot be overstated, as it plays a vital role in powering industries and homes alike. In this essay, we will explore the characteristics, uses, and environmental impact of steam coal (蒸汽煤) in our modern society.Firstly, steam coal (蒸汽煤) is characterized by its high carbon content, which typically ranges from 45% to 86%. This high carbon content makes it an efficient source of energy, as it releases a substantial amount of heat when burned. The calorific value of steam coal (蒸汽煤) is generally higher than that of other types of coal, making it a preferred choice for power generation. The combustion of steam coal (蒸汽煤) produces steam, which drives turbines in power plants, thereby generating electricity.In addition to electricity generation, steam coal (蒸汽煤) is also utilized in various industrial processes. For instance, it is used in cement production, where the heat generated from burning steam coal (蒸汽煤) is necessary for the calcination of limestone. Furthermore, steam coal (蒸汽煤) is employed in the manufacturing of steel, where it serves as a fuel and a reducing agent in the production of iron.However, the use of steam coal (蒸汽煤) is not without its challenges. The burning of coal releases carbon dioxide (CO2), a greenhouse gas that contributes to climate change. Additionally, the combustion process emits other harmful pollutants, such as sulfur dioxide (SO2) and nitrogen oxides (NOx), which can lead to air quality issues and health problems. As a result, many countries are now seeking to reduce their reliance on steam coal (蒸汽煤) in favor of cleaner energy sources, such as natural gas, wind, and solar power.Despite these environmental concerns, steam coal (蒸汽煤) remains a significant part of the global energy mix. Many developing nations still rely heavily on steam coal (蒸汽煤) for their energy needs due to its affordability and accessibility. In regions where renewable energy infrastructure is lacking, steam coal (蒸汽煤) provides a reliable source of energy that can support economic growth and development.In conclusion, steam coal (蒸汽煤) is an essential resource in the energy landscape, with various applications in electricity generation and industrial processes. While its use poses environmental challenges, it continues to play a critical role in meeting the energy demands of many countries. As we move towards a more sustainable future, it is crucial to balance the benefits of steam coal (蒸汽煤) with the need to mitigate its environmental impact. Transitioning to cleaner energy alternatives while managing existing coal resources will be key to achieving a sustainable energy future.