题目内容
In the spool valve, hydraulic fluid acts as sealant to reduce leakage.
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The first important lawof hydraulic transmission is that the working pressure in the hydraulic system depends on the________load.
The motion speed of piston in actuator only depends on the_____________.
From an operational standpoint, any hydraulic system can be divided into _______logical segments.
The gauge pressure of a hydraulic accumulator is 0.3MPa, so the absolute pressure of it is ______ MPa (The Atmospheric pressure is 0.1MPa)
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