precision of real arithmetic constants

例句：

1. 1. The engineer used ahigh-precision tool to measure thedimensions of the machine parts.
   工程师使用高精度工具测量机器零件的尺寸。
2. 2. The scientistconducted experiments with high precision to test thetheory.
   科学家用高精度进行实验来测试理论。
3. 3. The car's steering wheel isvery precise, allowing for easy control.
   汽车的方向盘非常精确，便于控制。