accuracy
英 ['ækjʊrəsɪ]
美['ækjərəsi]
	    - n. [数] 精确度,准确性
 
英英释意
- 1. the quality of nearness to the truth or the true value;
 - "he was beginning to doubt the accuracy of his compass"
 - "the lawyer questioned the truth of my account"
 
- 2. (mathematics) the number of significant figures given in a number;
 - "the atomic clock enabled scientists to measure time with much greater accuracy"