四川省成都市20xx-20xx學(xué)年高中英語module3myfirstrideonatrainintroductionculturalcorner課件外研版必修1-資料下載頁
2025-06-05 23:52本頁面
【正文】 itation, a cuttingedge technology in rail transit. The line will have a top train speed of 80 km/h. It is expected to bee operational before the end of next year. Experts believe the maglev line will offer huge potential for public transport in megacities because of the cheaper cost and reduced noise. The S1 line was proposed and planned in 2022, and some preparatory work began in early 2022, but it was suspended after residents expressed concerns over the environmental impact and electromagic radiation（輻射） . The city government approved the project in October 2022 after experiments and tests showed the line posed no health or environmental risks.
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