precision
/prɪˈsɪʒən/noun
mass noun
1- the quality, condition, or fact of being exact and accurate准确度, 精密度; 准确性; 确切性：
the deal was planned and executed with military precision.
交易是像军事行动那样精确策划并执行的。
1.1
- as modifier marked by or adapted for accuracy and exactness精密：
a precision instrument.
精密仪器。
1.2
- technical refinement in a measurement, calculation, or specification, especially as represented by the number of digits given〈技〉（测量、计算或说明的）精确化（尤以数字表现）：
this has brought an unprecedented degree of precision to the business of dating rocks
这使得测量岩石寿命的精密度达到了空前的水平
count noun a precision of six decimal figures.小数点后保持六位的精确度。比较ACCURACY.
词源
mid 18th cent.: from French précision or Latin praecisio（n-）, from praecidere 'cut off'（see PRECISE）.