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介绍一种新颖变频超声波治疗仪的设计方法。
This paper presents the design of ultrasonic therapeutic apparatus based on frequency conversion.
youdao
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一种采用超声波原理治疗白癜风的治疗仪。
An ultrasonic apparatus for treating leukoderma is disclosed.
youdao
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一种采用超声波原理治疗白癜风的治疗仪。
An ultrasonic apparatus for treating leukoderma is disclosed.
youdao