QB/T 2459.3-2022
AlKaline zinc-manganese dioxide battery spare parts - part 3: sealing ring 碱性锌-二氧化锰电池零配件 第3部分:密封圈 |
YD/T 1996.2-2022
Access NetworK Technical Requirements Second Generation Very High Speed Digital Subscriber Line (VDSL2) Part 2: Transceivers 接入网技术要求 第二代甚高速数字用户线(VDSL2) 第2部分:收发器 |
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