-扩展释义
|adjective|
1.US spelling of grey
|noun|
1.The SI unit of the absorbed dose of ionizing radiation, corresponding to one joule per kilogram.
‘To calculate the dose equivalent one of the workers would receive in sieverts, you would need to multiply the dose in grays, by the quality factor.’
‘The sievert is numerically equivalent to the gray for electrons and for X-rays irradiating the whole body.’
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