China currently wields significant influence on the global stage, and this influence stems from our country’s remarkable development. We’ve enabled the world to recognize China’s technological prowess as being at the forefront of the globe. Not only is China itself experiencing rapid development, but we’re also actively assisting other countries in building their infrastructure. Our infrastructure projects can easily be considered world-class. That’s why we’ve earned a rather imposing nickname: “Infrastructure Maniac.” Infrastructure development isn’t simply about constructing a large number of buildings—it’s about possessing strong underlying capabilities and cutting-edge technological expertise.
　　For example, China’s tunnel boring machine (TBM) technology is a powerful technological support for construction. Tunneling using TBM technology features high automation, significant labor savings, rapid construction speed, single-pass tunnel formation, independence from weather conditions, controllable ground settlement during excavation, reduced impact on surface buildings, and no disruption to surface water traffic even when excavating underwater. When tunnel alignments are long and the tunnels are buried at considerable depths, constructing with TBM technology becomes more economically viable and rational.
　　A tunnel boring machine, formally known as a shield tunneling machine, is a specialized piece of construction machinery used for tunnel excavation. Modern tunnel boring machines integrate optics, mechanics, electrical systems, hydraulics, sensing technologies, and information technology into a single unit. They perform functions such as excavating and cutting through soil, conveying excavated material, assembling tunnel linings, and providing precise measurement, guidance, and correction. These machines draw upon expertise from numerous disciplines—including geology, civil engineering, mechanical engineering, mechanics, hydraulics, electrical engineering, control systems, and surveying—and must be custom-designed and manufactured to suit specific geological conditions. Reliability requirements for these machines are exceptionally high. Tunnel boring machines are now widely used in tunnel projects spanning subways, railways, highways, municipal infrastructure, and hydroelectric facilities.
　　Achieving world number one isn't easy—first, we had the world's leading technology. Only then did we embark on one world-first project after another, including some that even managed to overtake others in unexpected ways. In the past, Europe and the U.S. led the way, and Japan also boasted highly advanced train technologies. But now, it’s China that stands far ahead of all other nations worldwide—our maglev trains hold the world’s fastest speed record. We’re not just first in a single or two technological fields; according to the number of high-tech patents filed by foreign countries at the United Nations, China also ranks first globally. As our country continues to develop rapidly, more and more areas will surely become world leaders. We owe a huge debt of gratitude to our scientists and researchers from all walks of life. Thanks to the concerted efforts of the Chinese people, we’ll ultimately become the world’s top leader in every field.