在传播边界外围构造一个活动窄带的翻译：Constructs a activities in the dissemination of the border perimeter of narrow-band 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Constructs a activities in the dissemination of the border perimeter of narrow-band

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In the dissemination activities border outlying constructs a narrowband

Constructs a activities in the dissemination of the border perimeter of narrow-band