rad(unit of absorbed dose)

• 拉德

英英释义

名词 rad:

1. a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material

2. the unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)