In a hydraulic system, the viscosity of hydraulic oil decreases with the ___________ of temperature.
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The equations of _________,_________and _________ are basic motion equations that describe the dynamics laws in flowing fluid.
There are three main states of flow in hydraulic system, such as _________,_________and _________in a pipe.
The liquid have two flow state in the pipeline, viscous force play a leading role for _______ flow, inertial force play a leading role for __________. The liquid flow state can be judged by ______________.
In pneumatic transmission, F.R.L is short for the combination of __________, _____________ and ______________.