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简要列举了感受冲击过载的压电换能器解决其万向性的途径，主要介绍半球壳形压电陶瓷的应用、研究现状及其存在问题。
A brief survey of the ways to deal with the impact of over-loaded piezoelectric transducers on their universal properties is given. The application, research status and existing problems of hemispherical shell piezoelectric ceramics are mainly introduced.