论述了提高加工精度和快速进给的技术措施。

Measures to improve the locating precision and the fast feed are discussed.

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采用永磁同步直线电机直接驱动是实现机床高精度进给的必要途径之一。

Adopting permanent magnet linear synchronous motor (PMLSM) direct drive is one of necessary approaches of realizing high precision.

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工作台进给的平稳性会影响孔壁的表面粗糙度，严重时会影响孔的尺寸精度。

The stability of the worktable will affect the surface roughness of the hole wall, which will affect the hole size precision seriously.

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And then she took the exact same people-- this time, put them in a pilot overalls and at the same time put them in a flight simulator and showed them the exact same the eye chart.

然后她把让同一群人-,这次让他们穿上飞行服,同时让他们坐进飞行模拟器,然后给他们看完全相同的视力表。

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