求翻译：金刚石颗粒通常是几个微米，砂轮表面氧化膜的厚度从几十微米变化到几百微米，磨粒的出刃高度远小于氧化膜的厚度，氧化膜与工件接触进行光磨。是什么意思？

Diamond particles are usually a few microns, the grinding wheel surface oxide film thickness changes from tens of microns to hundreds of micrometers, the grit protrusion height is much smaller than the thickness of the oxide film, the oxide film is light grinding contact with the workpiece.

diamond particles are usually a few micron, grinding wheel surface oxide film thickness of 10 microns from a few changes to a few 100 microns, the order of the abrasive particles much smaller than oxide film height of oxide film thickness, which comes into contact with the workpiece to the ground.

The diamond pellet usually is several microns, grinding wheel surface oxide film thickness changes from several dozens microns to several hundred microns, the abrasive the edge is highly far is smaller than oxide film thickness, the oxide film and the work piece contact carries on the light to rub.

Diamond particles are usually a few microns, the wheel from dozens of surface oxide film thickness micron to hundreds of micrometers, far less abrasive blade height oxide film thickness oxide films for optical ground contact with the workpiece.

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