... transducer directivity 换能器指向性... microphone directivity 传声器指向性... directivity separation 分方向的隔离...
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... traffic mark 通航标志 transducer directivity 转换器指向性 transfer car 搬运车 ...
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transducer array directivity 阵列指向性
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In order to improve the directivity of the transducer, we have employed two complementary piezoelectric elements in the construction.
同时在结构上加以改进，利用两片压电片在结构上互补，改善了传感器的方向性。
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