| 单词 | Pareto's law | 
| 释义 | Pareto's law [pǝ`rēd·ōz ´lȯ]  INDUSTRIAL ENGINEERING The principle that in most activities a small fraction (around 20%) of the total activity accounts for a large fraction (around 80%) of the result. Also known as rule of 80- 20.  | 
	
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