| 单词 | radioisotope thermoelectric generator | 
| 释义 | radioisotope thermoelectric generator [¦rād·ē·ō`ī·sǝ´tōp ¦thǝr·mō·i`lek·trik `jen·ǝ´rād·ǝr]  NUCLEONICS A device for converting nuclear energy to electrical energy in which the heat produced by radioactivity of a radioisotope is used to produce a voltage in a thermocouple circuit; chief use has been in space vehicles and in instruments left on the lunar surface. Abbreviated RTG.  | 
	
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