roentgen
美['rentjən] 英['rɜːntjən]
n. Roentgen.
adj. X射线的
sp. =röntgen.
英英释义
Noun- a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
- German physicist who discovered x-rays and developed roentgenography (1845-1923)
例句
用作名词(n.)- William Roentgen discovered X-rays.威廉
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