The reasons for causing the error is analyzed and the measures for reducing the drum-shaped error is proposed.

分析了所产生误差的原因并提出了减少鼓形误差的措施。

youdao

The reasons for causing the error is analyzed and the measures for reducing the drum-shaped error is proposed.

分析了所产生误差的原因并提出了减少鼓形误差的措施。

youdao