作者: Giovanardi Marco , Selden Brian Alexander , Belter Joseph Thomas , Dowie Graham A
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摘要: Disclosed herein are hydraulic actuators and methods for the operation of having variable relative pressure ratios. Further disclosed designing and/or operating a actuator such that exhibits ratio. In certain embodiments, ratio may be dependent on one or more characteristics (such as, example, frequency rate change) an oscillating input to actuator.