| 摘要 |
A dental turbine hand piece has a body, a turbine rotatable in the body about an axis, a light source arranged on the body, and means for current supply to the light source, a magnetic element formed on one of the turbine and the body, and a winding provided on the other of the turbine element in the body, so that during rotation of the turbine and in the body and interaction between the magnetic member and the winding and electric current is generated which is supplied to the light source.
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