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Getting a breath of fresh air is nearly impossible in Indian cities. With air pollution being a major health risk right now, air purifiers have slowly gone from “nice to have” to a necessity for every ...

TA仪器 Q400/Q400EM静态热机械分析仪 Q系列 TMA由上海昊扩科学器材有限公司提供，产地为美国，属于进口热机械分析仪，报价：40万 - 50万人民币，品牌：TA 仪器，符合多项分析标准，服务热线：400-616-7676转2126 ...

Abstract: Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal propagation in wireless networks. By smartly tuning the signal reflection via a large number of ...

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