dish aerial

简明释义

航空天线

英英释义

例句

1.Make sure the dish aerial is pointed towards the satellite for optimal performance.

确保卫星天线朝向卫星，以获得最佳性能。

2.The dish aerial on the roof provides excellent reception for our satellite TV.

屋顶上的卫星天线为我们的卫星电视提供了极好的接收效果。

3.To improve signal quality, we installed a new dish aerial.

为了提高信号质量，我们安装了一个新的卫星天线。

4.After the storm, we had to realign the dish aerial to restore the signal.

暴风雨过后，我们不得不重新对准卫星天线以恢复信号。

5.Our neighbor's dish aerial seems to be blocking our view.

我们邻居的卫星天线似乎挡住了我们的视线。

作文

In the world of telecommunications, the evolution of technology has led to significant advancements in how we receive and transmit signals. One such innovation is the use of a dish aerial, which is a type of antenna that has become increasingly popular for both personal and commercial use. A dish aerial (碟形天线) is designed to capture signals from satellites or other sources, allowing users to access a wide range of media content, including television channels and internet services. This essay will explore the functionality, advantages, and impact of dish aerials on modern communication systems.The primary function of a dish aerial is to collect and focus electromagnetic signals. The design of a dish aerial typically features a parabolic shape, which allows it to direct incoming signals to a specific point known as the feed horn. This concentrated signal is then transmitted to a receiver, where it can be decoded into usable information. The efficiency of this design makes dish aerials particularly effective for receiving weak signals from satellites that are located thousands of miles away.One of the main advantages of using a dish aerial is its ability to provide high-quality signals. Unlike traditional antennas, which may struggle to pick up signals in areas with poor reception, dish aerials can maintain a strong connection even in challenging environments. This reliability has made them a preferred choice for many households and businesses that depend on consistent access to satellite television and internet services.Moreover, the installation of a dish aerial is relatively straightforward. Many service providers offer professional installation services, ensuring that the dish is positioned correctly to maximize signal reception. Additionally, advancements in technology have led to the development of smaller and more aesthetically pleasing dish aerials, making them suitable for urban environments where space is limited.However, there are some challenges associated with dish aerials. For instance, they require a clear line of sight to the satellite to function effectively. Trees, buildings, and other obstructions can interfere with the signal, leading to disruptions in service. Furthermore, adverse weather conditions, such as heavy rain or snow, can also impact the performance of a dish aerial, causing temporary loss of signal.Despite these challenges, the impact of dish aerials on communication systems cannot be overstated. They have revolutionized the way people access information and entertainment, providing a gateway to countless channels and streaming services. As technology continues to evolve, we can expect further innovations in dish aerial design and functionality, making them even more efficient and user-friendly.In conclusion, the dish aerial (碟形天线) has become an essential component of modern telecommunications. Its ability to deliver high-quality signals and its ease of installation make it a popular choice among consumers. While there are some limitations to consider, the overall benefits of dish aerials far outweigh the drawbacks. As we look to the future, it is clear that dish aerials will continue to play a vital role in connecting people to the information and entertainment they desire.