更新时间：2026-07-07 23:45:36
rad是什么意思？
adj.有趣的n.[物]拉德(吸收辐射剂量单位)
- 单词
- rad
Noun:- a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material
- 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)
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