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混合多址
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hybrid multiple access
混合多址
将频分多址(frequency division multiple access,FDMA)、时分多址(time division multiple access,TDMA)和码分多址(code division multiple access,CDMA)等两种或多种结合使用的多址方式。
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water environment
water environmental carrying capacity
water environmental planning
water environmental quality forecast and impact assessment
water environmental science and technology
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Water Environment Federation
water environment function zoning
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water environment quality management
water environment regulation
water erosion
water erosion in China
water erosion prediction model
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