999英语网 英语单词
Rem的音标发音
Rem
英式发音：[rem]
美式发音
(noun.) (Roentgen Equivalent Man) the dosage of ionizing radiation that will cause the same amount of injury to human tissue as 1 roentgen of X-rays.
谢丽尔手打
(noun.) (Roentgen Equivalent Man) the dosage of ionizing radiation that will cause the same amount of injury to human tissue as 1 roentgen of X-rays.
谢丽尔手打