mains supply

简明释义

干线供给

英英释义

例句

1.This device is designed to work with a mains supply of 220 volts.

该设备设计为使用市电供电220伏特。

2.The new refrigerator requires a stable connection to the mains supply.

新冰箱需要稳定连接到市电供电。

3.The electrician checked the mains supply for any faults.

电工检查了市电供电是否有故障。

4.Make sure the mains supply is turned off before attempting any repairs.

在尝试任何修理之前，请确保市电供电已关闭。

5.If there is a power outage, the mains supply will be interrupted.

如果停电，市电供电将会中断。

作文

In today's world, electricity is a fundamental part of our daily lives. It powers our homes, our workplaces, and our devices. One term that often comes up in discussions about electrical systems is mains supply, which refers to the primary source of electrical power delivered to buildings and homes from the local utility company. Understanding this concept is crucial for anyone interested in how electricity works and how it is distributed. mains supply（主电源）is typically delivered through a network of power lines and transformers that convert high-voltage electricity from power plants into a lower voltage suitable for home use.The mains supply is usually alternating current (AC), which is different from direct current (DC) that is used in batteries. This AC electricity is what powers most of our household appliances, including refrigerators, washing machines, and televisions. Each country has its own standard voltage and frequency for mains supply—for instance, in the United States, the standard voltage is 120 volts at a frequency of 60 hertz, while in many European countries, it is 230 volts at 50 hertz.The reliability of the mains supply is critical for modern living. Power outages can disrupt our daily routines, affect businesses, and even pose safety risks. Therefore, many homes and businesses invest in backup generators or uninterruptible power supplies (UPS) to ensure they have access to electricity even when the mains supply is interrupted. These backup systems are particularly important for essential services such as hospitals, data centers, and emergency response facilities.Moreover, understanding the mains supply also involves recognizing the role of renewable energy sources. As the world moves towards more sustainable energy solutions, many households are installing solar panels that can provide electricity independently of the mains supply. These systems can either supplement the electricity received from the grid or function entirely off-grid, depending on the setup. This shift not only helps in reducing carbon footprints but also provides energy security for homeowners.In addition to practical applications, knowledge about the mains supply can empower individuals to make informed decisions about their energy consumption. By understanding how much energy their appliances use and how the mains supply operates, consumers can take steps to reduce their energy bills and contribute to a more sustainable future. For example, using energy-efficient appliances can significantly decrease the amount of electricity drawn from the mains supply, leading to lower costs and reduced environmental impact.In conclusion, the term mains supply encapsulates a vital aspect of our electrical infrastructure. It is the lifeline that connects us to the energy we need to power our lives. By understanding how the mains supply works, its significance, and its implications for energy consumption and sustainability, we can better appreciate the role of electricity in our everyday lives. As we continue to innovate and seek sustainable solutions, the mains supply will remain a central focus in discussions about energy management and environmental responsibility.

在当今世界，电力是我们日常生活中不可或缺的一部分。它为我们的家、工作场所和设备提供动力。一个常常出现在关于电气系统讨论中的术语是mains supply，它指的是由当地公用事业公司向建筑物和家庭提供的主要电力来源。理解这个概念对任何对电力如何工作以及如何分配感兴趣的人来说都是至关重要的。mains supply（主电源）通常通过一系列电力线和变压器传输，这些变压器将来自发电厂的高压电转化为适合家庭使用的低压电。mains supply通常是交流电（AC），这与用于电池的直流电（DC）不同。这种交流电是为我们大多数家庭电器供电的，包括冰箱、洗衣机和电视。每个国家对mains supply都有自己的标准电压和频率——例如，在美国，标准电压为120伏特，频率为60赫兹，而在许多欧洲国家，电压为230伏特，频率为50赫兹。mains supply的可靠性对现代生活至关重要。停电会打乱我们的日常生活，影响商业，甚至可能带来安全风险。因此，许多家庭和企业投资于备用发电机或不间断电源（UPS），以确保即使在mains supply中断时也能获得电力。这些备用系统对于医院、数据中心和应急响应设施等重要服务尤为重要。此外，了解mains supply还涉及到认识可再生能源的作用。随着世界向更可持续的能源解决方案迈进，许多家庭正在安装太阳能电池板，可以独立于mains supply提供电力。这些系统可以补充从电网获得的电力，或者根据设置完全离网运行。这一转变不仅有助于减少碳足迹，还为房主提供了能源安全。除了实际应用，了解mains supply还可以使个人能够做出明智的能源消费决策。通过了解他们的电器使用了多少能源以及mains supply的运作方式，消费者可以采取措施降低电费并为更可持续的未来做出贡献。例如，使用节能电器可以显著减少从mains supply提取的电量，从而降低成本并减少环境影响。总之，术语mains supply概括了我们电气基础设施的重要方面。它是连接我们所需能源的生命线，以支持我们的生活。通过理解mains supply的工作原理、重要性及其对能源消费和可持续性的影响，我们可以更好地欣赏电力在我们日常生活中的作用。随着我们继续创新并寻求可持续解决方案，mains supply将在关于能源管理和环境责任的讨论中保持中心地位。