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| Chinese National Standard Category: Projection equipment and its accessory |
| English Title: | The characteristic parameter of a collective gain reflective projection screen |
| Chinese Title: | 集聚增益反射放映银幕 特性参数 |
| Standard No.: | GB 11284-1989 |
| Category No.: | N42 |
| Issued by: | |
| Issued on: | |
| Implemented on: | 1990-1-1 |
| Status: | superseded |
| Superseded by: | JB/T 7809-1995 |
| Superseded on: | |
| Abolished on: | |
| Superseding: | |
| Word Count: | 3500 words |
| Similar Standards: | GB 10976-1989 GB/T 19896-2005 GB/T 19895.1-2005 GB/T 13982-2022 GB/T 32145-2015 GB/T 32143-2015 GB/T 32144-2015 GB/T 32200-2015 GB/T 13982-2011/XG1-2015 JB/T 9425-2011 JB/T 9424-2011 JB/T 11090-2011 JB/T 9419-2011 JB/T 6839-2011 JB/T 9418-2011 GB/T 13982-2011 GB/T 27507-2011 JB/T 10976-2010 JB/T 9420-2010 JB/T 9421-2010 |
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