natural frequency of rotor
... 泥线套管支承系统 mud line casing support system 转子支承系统固有频率 natural frequency of rotor 保时捷动态发动机支承系统 PDEM ...
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natural frequency of rotor/bearing system
natural frequency of rotor/bearing system,转子支承系统固有频率 natural gamma spectromenter of logger,自然伽玛能谱测井仪 ..
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