由于卫星覆盖网络
Due to satellite coverage network
以上为机器翻译结果，长、整句建议使用 人工翻译 。
多层卫星网络结构由于其鲁棒性强，可实现无缝覆盖等特点而成为研究热点。
Multilayer satellite network structure has become the research focus for its excellent qualities of high robustness and seamless coverage.
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