| 摘要 |
A turbine rotor has a shaft, a plurality of wheel discs shrunk-fit on said shaft along the axial direction thereof, said wheel discs being provided with blades on the outer circumference thereof. A plurality of coupling members are disposed between the wheel discs except the ones disposed most downstream, for coupling the wheel discs to each other. At least one coupling means is disposed between the wheel disc disposed most downstream of the shaft.
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