一、是at a high speed还是at high speed？
high speed是一个固定短语，高速的意思，不用加冠词
二、at a high speed造句？
1.So a heavy object, like a football player moving at a high speed, has a lot of momentum — that is, once he is moving, it is hard to change his state of motion.所以一个重的物体（比如一个高速运动的足球运动员）有很大的动量,这意味着一旦他运动起来,就很难改变他的运动状态。
2.Industries growing at a high speed, efficiency increasing significantly.二是工业快速增长，经济效益明显改善。
3.The train is going at a high speed.火车正在高速行进。
三、Taiwan High-Speed Rail vs Mainland China High-Speed Rail: A Comparison
Introduction
In recent years, high-speed rail has become an integral part of modern transportation infrastructure across the world. Both Taiwan and mainland China have developed extensive high-speed rail networks, revolutionizing domestic travel. While Taiwan High-Speed Rail (THSR) and Mainland China High-Speed Rail (MCHSR) are both efficient and convenient, there are notable differences in terms of technology, development, and operation.
Technological Differences
THSR employs Japanese Shinkansen technology, known for its reliability and safety. The trains operate on standard gauge tracks (1,435 mm) and can reach speeds of up to 300 km/h. In contrast, MCHSR uses the domestically developed high-speed railway technology, featuring a wider track gauge (1,520 mm) and higher speeds of up to 350 km/h. Both systems have advanced safety features such as automatic train control and advanced signaling systems.
Development and Network Coverage
THSR was inaugurated in 2007 and currently connects major cities on the western side of the island, stretching from Taipei in the north to Kaohsiung in the south. The network spans approximately 345 kilometers and has significantly reduced travel time between these cities. On the other hand, MCHSR has seen rapid expansion since its inception in 2008, with an extensive network covering major cities and regions across mainland China. The network has surpassed 38,000 kilometers, making it the largest high-speed rail network in the world.
Passenger Experience
Both THSR and MCHSR offer comfortable and spacious seating arrangements, onboard services, and modern amenities. THSR provides different ticket types for passengers to choose from, including standard, business, and premium classes. MCHSR offers similar classes, including second class, first class, and business class. Additionally, both systems provide accessible facilities for passengers with disabilities and offer Wi-Fi services onboard.
Operational Factors
THSR is operated by a private consortium under a 35-year build-operate-transfer (BOT) model. The system is financially independent and self-sustaining. In contrast, MCHSR is managed by the state-owned China Railway Corporation. The operating model combines government subsidies and ticket revenues to maintain financial stability. Both systems prioritize safety, punctuality, and customer satisfaction.
Conclusion
In summary, Taiwan High-Speed Rail and Mainland China High-Speed Rail are remarkable accomplishments in the field of transportation. While THSR and MCHSR share similarities in terms of efficiency and convenience, they differ in technology, network coverage, and operational factors. The development of high-speed rail has greatly improved domestic connectivity and has become an essential mode of transportation for many people. Whether it's exploring the cities of Taiwan or traveling across mainland China, high-speed rail offers a fast, reliable, and comfortable way to reach your destination.
We hope this comparison between Taiwan High-Speed Rail and Mainland China High-Speed Rail has provided useful insights into the similarities and differences between these two systems. Thank you for reading and we hope you have found this article helpful.
四、at high speed还是at a high speed，教材上是前一种？
二者都可以，例如：
1.Industries growing at a high speed, efficiency increasing significantly.二是工业快速增长，经济效益明显改善。
2.The train is going at a high speed.火车正在高速行进。
3.The engine is very noisy at high speed.这个发动机转速高时噪音非常大。
2.Police pursued the car at high speed.警察高速追赶那辆汽车。
五、high-speed怎么念中文谐音？
你好！ 读作：喝爱 思比德 希望能够帮到你！
六、at a high speed 后加doing还是do？
doing，因为speed后面应该加动词ing形式
七、Google Fiber: Revolutionizing High-Speed Internet Access
在当今数字时代,高速稳定的互联网连接已经成为人们生活和工作中不可或缺的一部分。Google Fiber作为一种创新的光纤宽带服务,正在改变着人们获取信息和娱乐的方式。本文将为您详细介绍这项技术的特点,以及它如何为用户带来全新的上网体验。
什么是Google Fiber?
Google Fiber是由谷歌公司开发的一种光纤宽带服务,它采用光纤直接连接到用户家中,提供超高速的互联网接入。与传统的铜线宽带相比,光纤技术能够提供更快、更稳定的网络连接,为用户带来卓越的上网体验。
Google Fiber最初于2010年在堪萨斯城推出,随后逐步扩展到其他城市,如亚特兰大、夏洛特和纳什维尔等。目前,这项服务已经覆盖了美国多个大中城市,并且仍在不断扩张。
Google Fiber的优势
与传统宽带相比,Google Fiber拥有以下几大优势:
- 超高速下载和上传:光纤技术可以提供高达1Gbps的下载和上传速度,是普通宽带的数十倍。这意味着用户可以快速浏览网页、下载大型文件,并轻松进行视频通话和在线游戏。
- 低延迟:光纤网络的延迟时间非常短,可以为用户带来流畅的在线体验,尤其适用于对网络延迟要求高的应用。
- 稳定性强:光纤网络抗干扰能力强,不易受到天气等外部因素的影响,能够为用户提供持续稳定的网络连接。
- 价格优惠:与其他高速宽带服务相比,Google Fiber的价格更加实惠,为用户带来更高性价比。
Google Fiber的应用场景
Google Fiber的超高速网络连接可以为各行各业带来广泛的应用场景:
- 远程办公和在线教育:光纤网络可以流畅支持视频会议、在线课程等应用,为远程办公和在线学习提供优质的网络环境。
- 在线娱乐和游戏:高速下载和低延迟特性使得Google Fiber非常适合观看高清视频、玩在线游戏等娱乐活动。
- 物联网和智能家居:光纤网络的高带宽和低延迟可以更好地支持物联网设备的互联互通,为智能家居应用提供强大的网络基础。
- 医疗健康:医疗行业对网络带宽和稳定性有很高的要求,Google Fiber可以满足远程诊疗、医疗影像传输等应用需求。
未来展望
随着数字化转型的不断深入,高速稳定的网络连接将成为人们生活和工作中不可或缺的基础设施。Google Fiber作为一种创新的光纤宽带服务,正在为用户带来全新的上网体验,并为各行各业提供广泛的应用场景。我们有理由相信,随着技术的不断进步和服务范围的不断扩大,Google Fiber将在未来发挥更加重要的作用,为用户创造更多的价值。
感谢您阅读本文,希望通过对Google Fiber的详细介绍,您能够更好地了解这项创新技术,并在工作和生活中充分利用它为您带来的便利。
八、speed不是不可数名词吗。为何说at a high speed？
speed可以是可数或不可数名词atafastspeed，这个用法基本可以看成是固定的，这时肯定是可数的自己只要查一下字典中的解释和例句就可以了
九、speed不是不可数名词吗? 为何说at a high speed, at a speed of之类的呢？
speed 可以是可数或不可数名词at a fast speed，这个用法基本可以看成是固定的，这时肯定是可数的自己只要查一下字典中的解释和例句就可以了
十、一运放芯片资料中有:High speed:145MHZ,-3dB bandwidth(G=+1)，High speed是什么意思？
高速啊！
就是说145MHz(每秒钟内有145M个信号周期)的信号可以有效放大。
要和后面说的联系起来理解，运放有一个很重要的指标叫做GBW(Gain Band Width)
就是增益和带宽的积，叫做增益带宽积，GBW=Gain*Bandwidth；
他所说的-3dB就是最大GBW了，也就是说，假如你的增益是1，那么最大可有效放大的信号频率就是145MHz；假如增益是2的话，那么最好有效放大信号的频率就是145/2(MHz)；
然后，你就会算，明白了吧。