| 单词 | milliampere-second | 
| 释义 | milliampere-second [¦mil·ē`am´pir `sek·ǝnd]  NUCLEONICS A unit of radiation dose resulting from exposure to x-rays, equal to the dose produced by an electron beam, carrying a current of 1 milliampere, bombarding the target of an x-ray tube for 1 second. Abbreviated mA . s.  | 
	
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