| 摘要 |
A cutting or grinding machine is composed of a processing unit having a substrate and an exchangeable cutting or grinding rod fixed to the substrate at its middle portion or rear end, and a rotatable unit having a rotatable support for workpiece, in which the cutting or grinding rod has a ultrasonic transducer on the rod in an area between a front end of the rod and a portion at which the rod is fixed to the substrate.
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