precise instrument

例句：

1. 1. The measurements were precise to within a millimeter.
   测量精度达到了毫米级。
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 designed an instrument that was precise enough for scientific research.
   工程师设计了一台足够精确的仪器，用于科学研究。