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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 18657.4-2002 |
Telecontrol equipment and systems--Part 5:Transmission protocols--Section 4:Definition and coding of application information elements 远动设备及系统 第5部分:传输规约 第4篇:应用信息元素的定义和编码 |
China National Standards 4:Definition |
 English PDF |
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