precision
noun [ U ] uk/prɪˈsɪʒ.ən/ us/prəˈsɪʒ.ən/
(EXACT)
准确（性），精确（性），精密（度）
the quality of being exact
Great precision is required to align the mirrors accurately. 校准反光镜需要极高的精确性。
Precision bombing was used to destroy enemy airbases and armaments factories. 使用了精确轰炸来摧毁敌人的空军基地和军工厂。
(CAREFUL)
approving严谨；细致，认真
the qualities of being careful and accurate
His books are a pleasure to read because he writes with such clarity and precision. 他的书读起来赏心悦目，因为他的写作清晰而又严谨。