X-rays were first discovered by a German scientist,Wilhelm Conrad roentgen,in 1895,almost by accident.

X射线最初是在1895年被一个德国科学家偶然地发现的，他的名字叫Wilhelm Conrad roentgen.

youdao

X-rayswere first observed and documented in 1895 by Wilhelm Conrad Roentgen, a Germanscientist who found them quite by accident when experimenting with vacuumtubes.

X射线第一次被观察和记录是在1895年，当时德国科学家威尔姆·康拉德·伦琴在使用真空管做实验时意外发现了X射线。 与光线和无线电波一样，X射线也是一种电磁辐射。

youdao