brown lignite

简明释义

褐煤

英英释义

例句

1.Due to its low carbon content, brown lignite is considered a less efficient fuel source.

由于其低碳含量，褐煤被认为是效率较低的燃料来源。

2.The power plant primarily uses brown lignite to generate electricity.

这座发电厂主要使用褐煤来发电。

3.The combustion of brown lignite releases a higher amount of pollutants than harder coals.

燃烧褐煤释放的污染物比硬煤更多。

4.Mining brown lignite can have significant environmental impacts.

开采褐煤可能对环境产生重大影响。

5.In some regions, brown lignite is the most abundant fossil fuel available.

在某些地区，褐煤是最丰富的化石燃料。

作文

Brown lignite, often referred to simply as lignite, is a type of coal that is characterized by its brownish color and relatively low carbon content. It is considered the lowest rank of coal due to its high moisture content and low energy density. This type of coal is primarily used for electricity generation in power plants. The unique properties of brown lignite (褐煤) make it an interesting subject for environmental studies and energy production discussions.Lignite is formed from peat, which is an accumulation of decayed plant material. Over millions of years, this peat undergoes geological processes that transform it into coal. However, unlike higher ranks of coal such as bituminous or anthracite, brown lignite (褐煤) retains a significant amount of moisture, often exceeding 60%. This high moisture level means that when burned, lignite produces less energy per unit than drier forms of coal. Therefore, while it is abundant and cheap, its efficiency is lower compared to other types of coal.One of the main advantages of brown lignite (褐煤) is its availability. Many countries, particularly those in Europe and the United States, have large deposits of lignite. This makes it a readily accessible energy source for power generation. For instance, in Germany, lignite accounts for a substantial portion of the country's electricity production. Power plants that utilize lignite are often built near mining sites to minimize transportation costs, making it economically viable despite its lower energy output.However, the use of brown lignite (褐煤) is not without controversy. The burning of lignite releases a significant amount of carbon dioxide and other pollutants into the atmosphere. This has raised concerns about its impact on climate change and air quality. As countries strive to reduce their carbon footprint, the reliance on lignite as a primary energy source has come under scrutiny. Environmentalists argue that the transition to cleaner energy sources, such as wind, solar, and hydroelectric power, is essential to combat global warming.Moreover, the extraction of brown lignite (褐煤) can have detrimental effects on local ecosystems. Open-pit mining, which is commonly used to extract lignite, can lead to habitat destruction and soil erosion. The process often requires significant land clearance, which disrupts local wildlife and plant species. This raises ethical questions about the balance between energy needs and environmental preservation.In conclusion, brown lignite (褐煤) is a vital resource for many countries, providing a substantial amount of electricity. However, its environmental implications cannot be ignored. As we move towards a more sustainable future, it is crucial to evaluate the role of lignite in our energy systems. Transitioning to more environmentally friendly energy sources will be necessary to ensure a healthier planet for future generations. Balancing energy needs with ecological responsibility will be one of the greatest challenges of our time.

褐煤，通常简单称为褐煤，是一种煤炭，具有褐色和相对较低的碳含量。由于其高水分含量和低能量密度，它被认为是最低等级的煤。这种类型的煤主要用于电力发电厂的电力生产。brown lignite（褐煤）的独特性质使其成为环境研究和能源生产讨论的有趣主题。褐煤是由泥炭形成的，泥炭是腐烂植物材料的积累。经过数百万年的地质过程，这种泥炭转变为煤。然而，与更高等级的煤（如烟煤或无烟煤）不同，brown lignite（褐煤）仍保留着相当多的水分，通常超过60%。这种高水分水平意味着在燃烧时，褐煤每单位产生的能量少于干燥形式的煤。因此，尽管它丰富且廉价，但与其他类型的煤相比，其效率较低。brown lignite（褐煤）的一个主要优点是其可获得性。许多国家，尤其是欧洲和美国，拥有大量的褐煤矿藏。这使其成为发电的一种易于获取的能源。例如，在德国，褐煤占该国电力生产的相当一部分。利用褐煤的发电厂通常建在采矿地点附近，以最小化运输成本，使其经济上可行，尽管其能量输出较低。然而，使用brown lignite（褐煤）并非没有争议。燃烧褐煤会向大气中释放大量二氧化碳和其他污染物。这引发了人们对其对气候变化和空气质量影响的担忧。随着各国努力减少碳足迹，对褐煤作为主要能源来源的依赖受到了审视。环保人士认为，过渡到风能、太阳能和水电等更清洁的能源是应对全球变暖的关键。此外，brown lignite（褐煤）的开采可能对当地生态系统造成严重影响。露天采矿，通常用于提取褐煤，可能导致栖息地破坏和土壤侵蚀。这一过程通常需要大量土地清理，从而干扰当地野生动物和植物物种。这引发了关于能源需求与环境保护之间平衡的伦理问题。总之，brown lignite（褐煤）是许多国家的重要资源，为其提供了大量电力。然而，其环境影响不容忽视。随着我们迈向更可持续的未来，评估褐煤在我们的能源系统中的作用至关重要。过渡到更环保的能源来源对于确保未来世代拥有一个更健康的星球将是必要的。在能源需求与生态责任之间取得平衡将是我们这个时代最大的挑战之一。