They provide the iron ores which supply the industrial complexes of Detroit and the surrounding regions.

它们给底特律及其周围地区的工业联合企业提供 铁矿石 。

youdao

The Soo Locks linked iron mines near Lake Superior with the cities of Detroit, Michigan; Cleveland, Ohio and Chicago,Illinois.

VOA: special.2009.11.11

And once per week, my poor mother, now 79, would have to make sure she wasn't wearing her nice clothes as she squeezed past that ancient hunk of Detroit iron to get to the garbage cans.

FORBES: The Coupe Coup

Though limousines are their rides of necessity, either candidate would certainly be able to connect with voters in traditional auto-driven towns like Lordstown, Ohio or Kenosha, Wisconsin by pulling up to the podium in some genuine Detroit iron.

FORBES: Who's The Bigger Car Guy: Obama, Romney Or...LBJ?

They can be like the Iron Range of Minnesota was for the Detroit car industry last century - a key resource located near where it was needed.

BBC: New venture 'to mine asteroids'