fix accuracy

• 定位精度

fix accuracy的用法和样例：

例句

1. Through circular computations, the orientation accuracy of geophone is enhanced.
   通过循环计算，提高了检波器定位精度。
2. Its accuracy is also better than that of the monostatic radar in the far region of the receiver station.
   与单基地雷达相比，其在远区的定位精度也具有明显的优势。