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全球每年大约有13.4亿人次乘坐地铁。作为地下交通的典型代表,地铁在许多城市中已担负起越来越重要的交通运输任务。由于部分城市人口增长过快,地铁空间难以承载,造成了很多安全隐患,也使得地铁的时间成本变得高昂。如今,来自伦敦地铁的一种地下立体电梯有望解决这一难题。该电梯由伦敦
Approximately 1.34 billion people travel around the world by subway each year. As a typical representative of underground transport, the MTR has taken on an increasingly important transportation task in many cities. As part of the urban population growth is too fast, the subway space is difficult to carry, creating a lot of security risks, but also makes the subway time costs become high. Today, a subterranean underground elevator from the London Underground is expected to solve the problem. The elevator is from London