题目内容
If the leakage of the hydraulic cylinder is not considered, the movement speed of the hydraulic cylinder is only determined by the flow rate in ( )
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The output thrust of the hydraulic cylinder is determined by the hydraulic pressure entering the hydraulic cylinder ( )
The function of the check valve is to only allow oil to flow in one direction ( )
The check valve adopts a poppet valve structure to ensure a good reverse sealing performance ( )
When a check valve is used as a back pressure valve, its spring should be replaced with a soft spring ( )
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