The difference between new and old national standard of the linear dimensions general tolerances were analysed emphatically.The application of general tolerances was also introduced.

 
  • 著(zhù)重分析“線(xiàn)性尺寸一般公差”新舊國家標準的區別、新標準的優(yōu)缺點(diǎn)介紹,結合本單位實(shí)際,介紹一般公差的應用。
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