单词：roentgens
(roentgen 的复数) n. 伦琴射线, X射线
[化] 伦琴
[化] 伦琴
plural of roentgen
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)
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)