An Asian surge in high-speed trains and rising US freight locomotive demand have helped create boom conditions in the once-moribund railway supply industry, new research has shown.

• 一项新研究显示，亚洲高速火车的急剧增多和美国对货运机车需求的日益上升，已帮助一度濒临绝境的铁路供应行业开创了繁荣局面。