megajoules

简明释义

英[ˈmɛɡəˌdʒuːlz]美[ˈmɛɡəˌdʒuːlz]

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.The current calculations show that about 1.2 megaJoules of energy will be enough for ignition, and currently Nif can run as high as 1.8 megaJoules.

目前的计算表明，实现点火需要1.2MJ的能量，而NIF可以实现1.8 MJ的脉冲激光能量。

2.In this case, the 33 megajoules launched the shot 5,500 feet per second, exceeding the speed of sound and releasing a sonic boom.

如若这样，那么3千3百万焦耳发射出的炮弹速度高达每秒5500英尺，这一速度超越了音速，会产生音爆。

3.In this case, the 33 megajoules launched the shot 5, 500 feet per second, exceeding the speed of sound and releasing a sonic boom.

如若这样，那么3千3百万焦耳发射出的炮弹速度高达每秒5500英尺，这一速度超越了音速，会产生音爆。

4.The current calculations show that about 1.2 megaJoules of energy will be enough for ignition, and currently Nif can run as high as 1.8 megaJoules.

目前的计算表明，实现点火需要1.2MJ的能量，而NIF可以实现1.8 MJ的脉冲激光能量。

5.The total energy released must be no more than 15 megajoules (MJ) for the first 10 minutes of the test.

在测试的最初10分钟内，总热释放量不能超过15兆焦耳（MJ）。

6.To power the entire city for a day, we would need approximately 10,000 megajoules (兆焦耳) of electricity.

为了让整个城市一天的供电，我们大约需要10,000megajoules (兆焦耳)的电力。

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

为了评估建筑的能效，建筑的能耗以megajoules (兆焦耳)为单位进行测量。

8.One kilogram of coal can produce around 24 megajoules (兆焦耳) of energy when burned.

一公斤煤在燃烧时可以产生大约24megajoules (兆焦耳)的能量。

9.The solar panel system generated 1500 megajoules (兆焦耳) of energy last month.

上个月，太阳能电池板系统产生了1500megajoules (兆焦耳)的能量。

10.A typical car engine produces about 200 megajoules (兆焦耳) of energy per hour.

一辆普通汽车引擎每小时产生大约200megajoules (兆焦耳)的能量。

作文

The concept of energy is fundamental to our understanding of the physical world, and one of the key units used to measure energy is the joule. When discussing larger quantities of energy, we often use the term megajoules">megajoules, which represents one million joules. This unit is particularly useful in various fields, including physics, engineering, and environmental science, where large amounts of energy are frequently involved. Understanding megajoules">megajoules allows us to better grasp the energy consumption of different processes and technologies.To illustrate the significance of megajoules">megajoules, consider the energy needed to power a household appliance. For example, a typical microwave oven uses about 1,000 watts of power. If you operate it for 30 minutes, it consumes approximately 0.5 kilowatt-hours (kWh) of energy, which is equivalent to about 1.8 megajoules">megajoules. This calculation highlights how everyday activities can be quantified in terms of megajoules">megajoules, making it easier to understand energy use in our daily lives.In the context of renewable energy, megajoules">megajoules play a crucial role in evaluating the efficiency of different energy sources. For instance, solar panels convert sunlight into electrical energy, and their output is often measured in megajoules">megajoules. By comparing the energy produced by solar panels to the energy consumed by a home, we can assess the sustainability of using solar energy. This comparison not only informs consumers but also aids policymakers in promoting renewable energy initiatives.Moreover, in the field of transportation, understanding megajoules">megajoules is vital for evaluating fuel efficiency. For example, a car that travels a certain distance will consume a specific amount of energy, which can be expressed in megajoules">megajoules. By analyzing the energy consumption of various vehicles, we can make informed choices about which modes of transportation are more energy-efficient and environmentally friendly.In summary, the term megajoules">megajoules serves as an essential unit of measurement in our understanding of energy. Whether we are discussing household appliances, renewable energy sources, or transportation, megajoules">megajoules provide a common framework for quantifying energy use. As we continue to face global challenges related to energy consumption and sustainability, a clear understanding of megajoules">megajoules will aid us in making better decisions for our planet's future. Ultimately, by becoming more aware of how we use energy and the role of megajoules">megajoules in our lives, we can contribute to a more sustainable and efficient world.

能量的概念是我们理解物理世界的基础，而用于测量能量的关键单位之一是焦耳。当谈论更大数量的能量时，我们通常使用术语megajoules">兆焦耳，它代表一百万焦耳。这个单位在物理学、工程学和环境科学等多个领域中都特别有用，因为这些领域涉及大量的能量。理解megajoules">兆焦耳可以帮助我们更好地掌握不同过程和技术的能量消耗。为了说明megajoules">兆焦耳的重要性，考虑一下为家用电器提供能量所需的能量。例如，典型的微波炉使用约1000瓦的功率。如果你操作它30分钟，它大约消耗0.5千瓦时（kWh）的能量，这相当于约1.8megajoules">兆焦耳。这个计算突显了日常活动如何以megajoules">兆焦耳为单位进行量化，使我们更容易理解日常生活中的能量使用。在可再生能源的背景下，megajoules">兆焦耳在评估不同能源源的效率方面起着至关重要的作用。例如，太阳能电池板将阳光转化为电能，其输出通常以megajoules">兆焦耳为单位进行测量。通过比较太阳能电池板产生的能量与家庭消耗的能量，我们可以评估使用太阳能的可持续性。这种比较不仅为消费者提供信息，还帮助政策制定者推动可再生能源计划。此外，在交通运输领域，理解megajoules">兆焦耳对于评估燃料效率至关重要。例如，一辆车在行驶一定距离时会消耗特定数量的能量，这可以用megajoules">兆焦耳来表示。通过分析各种车辆的能量消耗，我们可以做出有关哪些交通方式更具能效和环保的明智选择。总之，术语megajoules">兆焦耳作为我们理解能量的重要测量单位。在讨论家用电器、可再生能源或交通运输时，megajoules">兆焦耳为量化能量使用提供了一个共同的框架。随着我们继续面临与能量消耗和可持续性相关的全球挑战，清晰理解megajoules">兆焦耳将帮助我们为地球的未来做出更好的决策。最终，通过更加了解我们如何使用能量以及megajoules">兆焦耳在我们生活中的作用，我们可以为实现一个更可持续和高效的世界做出贡献。