Focus-adjustable curved surface ultrasonic transducer and ultrasonic treatment system
The invention relates to the technical field of ultrasonic treatment, in particular to a focus-adjustable curved surface ultrasonic transducer and an ultrasonic treatment system. The focus-adjustablecurved-surface ultrasonic transducer comprises a curved-surface transducer and a focal length adjusti...
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Format: | Patent |
Sprache: | chi ; eng |
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