The force acting on the fluid can be divided into two types, including ______ and ______ .
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What kind of approach can be used to describe fluid flow in fluid dynamics?
A. Lagrangian approach
B. Reynolds approach
C. Bernoulli approach
D. Eulerian approach
In approximate models, ( ) is widely used in model experiments about oil flow.
A. Froude model
B. Reynolds model
C. Euler model
D. Complete similitude model
Commonly, the equipment used for measuring velocity and flow rate in engineering are ______ and ______ .
The kinematic viscosity of saturated steam is ______ at 200 ℃. And the dynamic viscosity of heavy oil is _(0.1pa·s)______ at 333.15 K.