早在十九世纪四十年代，铁路工程师就注意到了逆向应力作用会导致火车事故；

The first to appreciate the catastrophic effects of stress-reversals were railway engineers in the 1840s.

youdao

早在十九世纪四十年代，铁路工程师就注意到了逆向应力作用会导致火车事故；

The first to appreciate the catastrophic effects of stress-reversals were railway engineers in the 1840s.

youdao