n. a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air n. German physicist who discovered x-rays and developed roentgenography (1845-1923)
中文释义
n. 伦琴射线, X射线 [化] 伦琴
详细用法及例句
1.
If we can't cover it, that's 12,000 roentgen.
如果不用石棺覆盖 那就是一万两千伦琴
2.
It only goes to 200 roentgen, but it's better than the all ones.
