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Patent
压电超声换能器
Date:2018-12-21
Hits:
Publication Date:
2008-02-13
Application Date:
2007-09-04
Date of authorization:
2010-06-16
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一种棒形超声复合压电换能器的液压加压装置
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椭圆振动功率合成拉管拉丝装置
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