117. What is the range of the length of the thick rolled sheets used in the rotor design of the hydro generators? a) 130-180 mm b) 120-180 mm c) 150-180 mm d) 160-190 mm
117. What is the range of the length of the thick rolled sheets used in the rotor design of the hydro generators? a) 130-180 mm b) 120-180 mm c) 150-180 mm d) 160-190 mm
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