1roentgen masculinoroentgenio masculino
- A lethal exposure of radiation ranges from 300 to 500 roentgens an hour; levels in the tour areas vary from 15 to several hundred microroentgens an hour.
- She talked about rems and rads and roentgens per hour, and at first, he tried to memorize her words, but he wasn't able to commit the information to memory.
- This is also equivalent to exposure to a level of one roentgen.
- Some paramecium can withstand 200,000 roentgens.