The gas-liquid linkage speed loop has the characteristics of smooth movement, accurate stopping, and low energy consumption ( )
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The maximum vacuum degree will not exceed one atmosphere pressure ( )
A. 对
B. 错
The flow rate through thin-wall orifice is related to the density and viscosity of the liquid ()
A. 对
B. 错
The differential connection of the hydraulic cylinder can increase the movement speed of the piston and obtain a large output thrust ()
A. 对
B. 错
The theoretical flow rate of a hydraulic pump is related to its structural size and rotational speed, and has nothing to do with working pressure ()
A. 对
B. 错