alternate current

简明释义

1. 交变电流; 2. 交流电;

英英释义

例句

1.The transformer converts high voltage alternate current 交流电 to a lower voltage suitable for homes.

变压器将高压交流电转换为适合家庭使用的低压。

2.Unlike alternate current 交流电, direct current flows in one direction only.

与交流电不同，直流电只朝一个方向流动。

3.To power the motor, we need to connect it to an alternate current 交流电 source.

要为电动机供电，我们需要将其连接到交流电源。

4.Many cities use alternate current 交流电 for street lighting due to its efficiency.

许多城市由于效率高而使用交流电进行街道照明。

5.The electrical engineer explained how alternate current 交流电 is used in most household appliances.

电气工程师解释了大多数家用电器如何使用交流电。

作文

The invention of electricity has transformed the world in ways that were once unimaginable. Among the various types of electrical currents, alternate current (交流电) stands out as one of the most significant developments in electrical engineering. Understanding alternate current is crucial for anyone interested in how modern electrical systems operate. In this essay, I will explore the concept of alternate current, its advantages, and its applications in everyday life.Alternate current refers to the type of electrical current that periodically reverses direction. Unlike direct current (DC), which flows in a single direction, alternate current changes its direction at regular intervals. This characteristic makes it particularly suitable for power distribution over long distances. The ability to transmit electricity efficiently is vital for powering homes, businesses, and industries.One of the main advantages of alternate current is its ease of voltage transformation. Using transformers, we can increase or decrease the voltage of alternate current without losing much energy. This capability allows electricity to be transmitted at high voltages, which reduces energy loss due to resistance in the wires. Once the electricity reaches its destination, it can be transformed back to a lower voltage for safe use in homes and appliances.Another important aspect of alternate current is its versatility. It can power a wide range of devices, from small household appliances to large industrial machines. Most electrical outlets in our homes provide alternate current, making it the standard form of electricity for residential use. This widespread availability means that most electrical devices are designed to operate on alternate current, ensuring compatibility and convenience for consumers.The history of alternate current dates back to the late 19th century when inventors like Nikola Tesla and George Westinghouse championed its use. Their work led to the establishment of alternate current as the dominant system for electrical power distribution. Today, alternate current powers everything from our lights to our computers, demonstrating its importance in our daily lives.In addition to its practical applications, alternate current also plays a role in renewable energy technologies. Many solar panels and wind turbines generate electricity in the form of direct current, which must be converted to alternate current for use in the grid. This conversion process highlights the ongoing relevance of alternate current in the transition to more sustainable energy sources.In conclusion, alternate current is a fundamental concept in the field of electricity that has shaped the modern world. Its ability to efficiently transmit power over long distances, transform voltage levels, and power a wide variety of devices makes it indispensable in today’s society. As we continue to innovate and develop new technologies, understanding alternate current will remain essential for both engineers and consumers alike. The legacy of alternate current is not just in its technical specifications but in its profound impact on how we live and interact with the world around us.

电力的发明以不可思议的方式改变了世界。在各种类型的电流中，alternate current（交流电）作为电气工程中最重要的发展之一脱颖而出。理解alternate current对于任何对现代电气系统运作感兴趣的人来说都是至关重要的。在这篇文章中，我将探讨alternate current的概念、优势以及其在日常生活中的应用。Alternate current指的是一种电流类型，它会定期反转方向。与单向流动的直流电（DC）不同，alternate current在规则的时间间隔内改变其方向。这一特性使其特别适合长距离的电力分配。高效传输电力的能力对于为家庭、企业和工业供电至关重要。Alternate current的主要优势之一是其电压转换的便利性。通过使用变压器，我们可以在不损失太多能量的情况下增加或降低alternate current的电压。这种能力允许电力以高电压传输，从而减少因电线电阻造成的能量损失。一旦电力到达目的地，就可以转换回较低电压，以便安全用于家庭和电器。Alternate current的另一个重要方面是其多功能性。它可以为从小型家用电器到大型工业机器的广泛设备供电。我们家中的大多数电源插座提供alternate current，使其成为住宅使用的标准电力形式。这种广泛的可用性意味着大多数电器设计为在alternate current上运行，从而确保了消费者的兼容性和便利性。Alternate current的历史可以追溯到19世纪末，当时尼古拉·特斯拉和乔治·威斯汀豪斯等发明家倡导其使用。他们的工作使得alternate current成为电力分配的主导系统。今天，alternate current为我们的灯光和计算机提供动力，显示了其在我们日常生活中的重要性。除了其实际应用外，alternate current在可再生能源技术中也发挥着作用。许多太阳能电池板和风力涡轮机产生直流电，必须转换为alternate current才能在电网中使用。这一转换过程突显了alternate current在向更可持续能源来源过渡中的持续相关性。总之，alternate current是电力领域的一个基本概念，它塑造了现代世界。其高效的长距离电力传输、变换电压水平和为各种设备供电的能力使其在当今社会中不可或缺。随着我们继续创新和开发新技术，理解alternate current将对工程师和消费者而言仍然至关重要。Alternate current的遗产不仅体现在其技术规格上，而且体现在其对我们生活和与周围世界互动的深远影响中。