1997资源列表
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[国外标准] JIS B7095-1997 Photographic lenses-Methods for the measurement of the effective aperture, F-number a
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[国外标准] JIS B6194-1997 Machine tool-Test code for circular movement of numerically controlled machine tools
[国外标准] JIS B7095-1997 Photographic lenses-Methods for the measurement of the effective aperture, F-number a
[国外标准] JIS B6194-1997 Machine tool-Test code for circular movement of numerically controlled machine tools