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THE MACHINIST DICTIONARY 封面
THE MACHINIST DICTIONARY

作者：FRED H.COLVIN
GEAR CUTTING PRACTICE METHODS OF PRODUCING GEARS FOR COMMERCIAL USE THIRD EDITION 封面
GEAR CUTTING PRACTICE METHO...

作者：FRED H.COLVIN FR...
RUNNING A MACHINE SHOP 封面
RUNNING A MACHINE SHOP

作者：FRED H.COLVIN FRA...
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