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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 23284-2009 |
Micrographics - Image mark (blip) used with 16mm and 35mm roll microfilm 缩微摄影技术 16mm和35mm卷式缩微胶片使用的影像标记(光点) |
China National Standards Micrographics Image mark |
 English PDF |
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