So the first thing you do is your write down your differential equations.

所以你要做的第一件事是你写下，你的微分方程。

youdao

Observe the apparent first check valve differential pressure (a - b).

观察第一止回阀压差(A- B)。

youdao

Observe the apparent first check valve differential pressure (a - b).

观察第一止回阀压差(A- B)。

youdao