间质内放疗自上世纪初出现以来，随医疗设备的不断革新而飞速发展。

Since the early years of last century, brachytherapy has been developing very fast along with inventions of new medical equipments.

youdao

间质内放疗自上世纪初出现以来，随医疗设备的不断革新而飞速发展。

Since the early years of last century, brachytherapy has been developing very fast along with inventions of new medical equipments.

youdao