precise data

例句：

1. 1. The measurements were precise to within a fraction of an inch.
   测量结果非常精确，误差不到一英寸。
2. 2.The scientist used precise instruments to measure the temperature.
   科学家使用精密仪器来测量温度。
3. 3.The engineer made a precise calculation before starting the project.
   工程师在开始项目之前做了精确的计算。