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美国的LandisLund公司约花费4年的时间研制了一台Nanogrind型超精密磨床。该机床装备了能每隔2°分度的回转磨头，可用于磨别难加工材料（其中包括陶瓷）的圆形和非圆形零件。最大加工直径150mm，最大长度675mm两个坐标的进给分辨率为O．01μm。两坐标的偏差借助于陶瓷尺和电容
LandisLund company in the United States took about 4 years to develop a Nanogrind-type ultra-precision grinder. The machine is equipped with rotary grinding heads capable of indexing every 2 ° and can be used for round and non-round parts for hard-to-machine materials, including ceramics. The maximum processing diameter of 150mm, the maximum length of 675mm feed coordinates of two coordinates is O. 01μm. Deviation of the two coordinates by means of ceramic ruler and capacitance