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单元尺寸远小于波长的二维人工超材料。通过调控单元的结构参数可实现自然界材料在电磁、声学、热学等方面所不具备的性质。
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electronic evidence software function examination
Electronic Evidence: Strategies for Managing Records in Contemporary Organizations
electronic expansion valve
electronic exposure
electronic exposure camera
electronic eye
electronic feedback short period seismometer
electronic fence of bicycle sharing
electronic field production
electronic filtering
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electronic foreign trade and economic management
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