raw coal

简明释义

原煤

英英释义

例句

1.The company specializes in the mining of raw coal from deep underground.

该公司专注于从深层地下开采原煤。

2.Transporting raw coal can be challenging due to its weight.

运输原煤可能会因为其重量而变得困难。

3.After extraction, the raw coal is cleaned and sorted.

开采后，原煤会被清洗和分类。

4.The power plant uses raw coal to generate electricity.

发电厂使用原煤来发电。

5.Before processing, the raw coal must be tested for impurities.

在加工之前，必须对原煤进行杂质测试。

作文

Coal has been a vital source of energy for centuries, powering industries and homes alike. Among the various types of coal, raw coal (原煤) plays a significant role in the initial stages of coal processing. This term refers to coal that has not yet undergone any form of treatment or refinement, making it the most basic form of coal available. Understanding the significance and characteristics of raw coal is essential for appreciating its impact on the energy sector and the environment.The extraction of raw coal involves mining operations that can be either surface or underground. Surface mining is typically used when the coal is located close to the earth's surface, allowing for easier access and lower extraction costs. On the other hand, underground mining is employed when coal seams are buried deeper, requiring more complex and expensive methods to retrieve the raw coal (原煤). Regardless of the method, the process of obtaining raw coal can have significant environmental implications, including habitat destruction and pollution.Once extracted, raw coal is transported to processing facilities where it undergoes various treatments to enhance its quality. This includes processes such as crushing, washing, and sorting, which help remove impurities like sulfur and ash. The resulting product is known as 'processed coal,' which is more suitable for combustion in power plants and other industrial applications. However, before this transformation occurs, the importance of raw coal must be acknowledged, as it serves as the foundation for the entire coal supply chain.The energy produced from raw coal (原煤) is substantial, contributing significantly to electricity generation worldwide. Despite the growing emphasis on renewable energy sources, coal remains a dominant player in the energy market, particularly in developing countries where access to alternative energy sources may be limited. This reliance on raw coal raises concerns about carbon emissions and climate change, prompting a global push towards cleaner energy alternatives.Moreover, the economic aspects of raw coal cannot be overlooked. The coal industry provides jobs for millions of people around the world, from miners to transporters to plant workers. The revenue generated from raw coal mining contributes to local economies and supports various industries. However, the long-term sustainability of this economic model is under scrutiny as the world transitions towards greener energy solutions.In conclusion, raw coal (原煤) is an essential component of the coal industry and plays a crucial role in energy production. While it offers significant benefits in terms of energy supply and economic growth, the environmental consequences of its extraction and use must be carefully managed. As society moves forward, finding a balance between utilizing raw coal and investing in sustainable energy sources will be key to ensuring a healthier planet for future generations.