domestic scholars call
国内学者呼吁
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Because this system can use the spectrum effectively as well as provide better call quality and rich communication services, it has attracted attention of scholars domestic and abroad in recent years.
近年来因为这种通信系统能有效地使用频谱，提供更好的通话质量和丰富的通信业务而备受国内外学者的关注。
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