| 单词 | gray (Gy) |
| 释义 | gray (Gy)Definition Metric (SI) unit of absorbed radiation, equal to 100 radiation absorbed doses (RAD). It is defined as the dose of 1 joule of radiant energy absorbed per kilogram of matter. Named after the UK pioneer of use of radiation in cancer treatment, Dr. L. Harold Gray (1905-1965). |
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