A.the direct acting relief valve is used for controlling lower flows and pressure
B.the pilot operated relief valve is used for controlling higher flows and pressure
C.the pilot operated relief valve is used for controlling lower flows and pressure
D.the controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve
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A.electric motor
B.hydraulic motor
C.compressed air
D.turning gear
A.will be modulated in proportion
B.will be modulated in proportion and integral
C.will be modulated in proportion and differential
D.will not be modulated at all
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