megajoule

简明释义

英[ˈmɛɡəˌdʒuːl]美[ˈmɛɡəˌdʒuːl]

n. 兆焦（米千克秒单位制功或能的单位）

英英释义

单词用法

同义词

反义词

例句

1.It's a complex 192-beam system that last year generated a pulse with a megajoule of energy in a few billionths of a second, making it the most powerful laser ever built.

这是一个复杂的系统，可以同时发出192束激光，去年，在十亿分之几秒的时间内，产生了能量达到100万焦耳的激光脉冲，使之成为有史以来能量最强的激光器。

2.It's a complex 192-beam system that last year generated a pulse with a megajoule of energy in a few billionths of a second, making it the most powerful laser ever built.

这是一个复杂的系统，可以同时发出192束激光，去年，在十亿分之几秒的时间内，产生了能量达到100万焦耳的激光脉冲，使之成为有史以来能量最强的激光器。

3.A megajoule is equivalent to the energy released when a one-tonne vehicle slams into a wall at 160kmh.

一兆焦相当于一个一吨重的物体以160公里/小时的速度撞一面墙产生的能量。

4.The 3 megajoule device is the first large scale module capable of storing heat at a high rate as required for DEW.

此3兆焦装置是第一个拥有存储定向能武器所需高热能力的大型模型。

5.A typical electric kettle uses about 2 megajoules (兆焦耳) of energy to boil water.

一台普通的电热水壶煮水大约需要2兆焦耳 (megajoules) 的能量。

6.The energy consumption of the building was measured in megajoules (兆焦耳) to assess its efficiency.

这栋建筑的能耗以兆焦耳 (megajoules) 为单位进行测量，以评估其效率。

7.The solar panel system produced 15 megajoules (兆焦耳) of electricity today.

今天太阳能电池板系统产生了15兆焦耳 (megajoules) 的电力。

8.One liter of gasoline contains approximately 31 megajoules (兆焦耳) of energy.

一升汽油大约含有31兆焦耳 (megajoules) 的能量。

9.To power an electric car for 100 kilometers, it requires about 20 megajoules (兆焦耳) of energy.

为一辆电动车提供100公里的动力，大约需要20兆焦耳 (megajoules) 的能量。

作文

The concept of energy is fundamental to our understanding of the physical world. One important unit of measurement for energy is the megajoule, which is equivalent to one million joules. To put this in perspective, a megajoule can be understood as the amount of energy required to lift a small apple to a height of about 100 meters. This unit is commonly used in various fields, including physics, engineering, and nutrition, to quantify energy consumption and production.In the realm of physics, the megajoule serves as a critical unit for measuring work done or energy transferred. For example, when discussing the energy output of engines or the energy required for certain chemical reactions, scientists often refer to megajoules. Understanding how to convert energy from one form to another is essential, and the megajoule provides a standardized way to communicate these quantities.Moreover, in the field of renewable energy, the megajoule plays a significant role. Solar panels, wind turbines, and other renewable sources of energy are often rated in megajoules to indicate their energy production capabilities. For instance, a solar panel might produce around 1.5 megajoules of energy per hour under optimal conditions. This information is crucial for engineers and policymakers who aim to maximize energy efficiency and sustainability.In addition to its applications in physics and engineering, the megajoule also finds relevance in nutrition. Food energy is often measured in calories, but it can also be expressed in megajoules. One calorie is approximately equal to 0.004184 megajoules, which means that understanding food energy in terms of megajoules can help individuals better manage their dietary choices. For example, a chocolate bar may contain around 1 megajoule of energy, which can be useful information for someone tracking their caloric intake.Furthermore, as we become more aware of global energy consumption and its impact on the environment, the megajoule serves as a vital tool for analyzing energy efficiency. Governments and organizations often set energy consumption targets in megajoules to promote sustainable practices. By understanding how much energy we consume in megajoules, we can take informed steps toward reducing our carbon footprint and conserving resources.In conclusion, the megajoule is a versatile unit of energy that transcends various fields, from physics and engineering to nutrition and environmental policy. By grasping the significance of the megajoule, we can better understand the energy dynamics that shape our world. Whether we are lifting an object, generating electricity, or managing our diets, the megajoule provides a clear and quantifiable measure of energy that is essential for scientific communication and practical applications.

能量的概念是我们理解物理世界的基础。一个重要的能量测量单位是兆焦耳，它等于一百万焦耳。为了更好地理解这一点，兆焦耳可以被看作是将一个小苹果抬升到大约100米高度所需的能量。这一单位在物理学、工程学和营养学等多个领域中被广泛使用，以量化能量的消耗和生产。在物理学领域，兆焦耳作为测量所做工作的关键单位或转移的能量。例如，在讨论引擎的能量输出或某些化学反应所需的能量时，科学家们常常提到兆焦耳。理解如何将能量从一种形式转换为另一种形式至关重要，而兆焦耳提供了一种标准化的方式来传达这些数量。此外，在可再生能源领域，兆焦耳也发挥着重要作用。太阳能电池板、风力涡轮机和其他可再生能源的生产能力通常以兆焦耳为单位进行评估。例如，在最佳条件下，一个太阳能电池板每小时可能产生约1.5兆焦耳的能量。这些信息对旨在最大化能量效率和可持续性的工程师和政策制定者至关重要。除了在物理学和工程学中的应用外，兆焦耳在营养学中也具有相关性。食物能量通常以卡路里计量，但也可以用兆焦耳表示。一卡路里大约等于0.004184兆焦耳，这意味着用兆焦耳理解食物能量可以帮助人们更好地管理他们的饮食选择。例如，一块巧克力棒可能含有约1兆焦耳的能量，这对追踪卡路里摄入的人来说是有用的信息。此外，随着我们越来越意识到全球能源消耗及其对环境的影响，兆焦耳作为分析能量效率的重要工具显得尤为重要。各国政府和组织通常以兆焦耳设定能量消耗目标，以促进可持续实践。通过了解我们以兆焦耳为单位的能量消耗，我们可以采取明智的步骤来减少我们的碳足迹和节约资源。总之，兆焦耳是一个多功能的能量单位，跨越了物理学、工程学、营养学和环境政策等多个领域。通过掌握兆焦耳的重要性，我们可以更好地理解塑造我们世界的能量动态。无论我们是在抬升物体、发电还是管理饮食，兆焦耳都提供了一个清晰且可量化的能量测量标准，对于科学交流和实际应用至关重要。