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高分子驻极体和压电体是近十几年来发展起来的新型换能材料,用它做的传感器件品种愈来愈多,应用也愈来愈广泛。
Polymer electrets and piezoelectric bodies are new transduction materials developed in recent ten years. With it, more and more sensing devices are used and their applications are more and more widely used.