在超精密切削、磨削、特种加工中，大行程驱动与高精度进给是难以解决的矛盾，也是多坐标超精密加工的难点。
On ultra precision cutting, grinding and non-traditional machining, there is a hard problem between long travel and high precision, especially in multi-coordinate machining.
又由于油膜具有均化作用，可以提高进给精度，在较长的行程上可以达到纳米级的定位分辨率。
Also because the lubricant film has the homogenization, may increase to feed precision, may achieve a nanometer level in the long traveling schedule the localization resolution.
研制成两类任意行程、微步距进给驱动装置。
Two kinds of random stroke, nano meter feed mechanism have been developed.
研制成两类任意行程、微步距进给驱动装置。
Two kinds of random stroke, nano meter feed mechanism have been developed.
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