求翻译：液压调速器在感应元件和油量调节机构之间加入一个液压放大元件(液压伺服器)，使感应元件的输出信号通过放大元件再传到油量调节机构上去，因此也叫间接作用式调速器。是什么意思？

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Hydraulic control in the sensing element and the oil flow regulating agencies to enlarge a hydraulic components (hydraulic servo), the sensing element of the output signal by zooming in element to be uploaded to oil, and therefore appears to be regulated institutions also called indirect role-govern

Hydraulic speed Governor in sensors and oil amount adjustment between joining a hydraulic amplification component (hydraulic servo device), the sensors output signal by scaling the components to the oil amount adjustment institution, also called indirect acting type regulator.