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在2002年10月于东京举办的21JIMTOF展(日本国际机床展)上,共展出了524台NC机床,据统计,内有25家公司41台NC机床装用了直线电机。表明目前世界
A total of 524 NC machine tools were exhibited at the 21JIMTOF (Japan International Machine Tool Show) in October 2002 in Tokyo. It is estimated that there are 41 linear machines installed in 25 NC machines in the company. Indicate the current world