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440 US3768776 Steam Turbine Governor Valve Actuating Mechanism 汽轮机调节汽门操纵机构
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| File | 440__US3768776_Steam_Turbine_Governor_Valve_Actuating_Mechanism_汽轮机调节汽门操纵机构.pdf |
|---|---|
| Type / category | reference_pdf / references |
| Organization | — |
| Authors | — |
| Language | — |
| Rights / access | unknown / internal |
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