a flow-through test的用法和样例：
- Services are bundled into a flow through orchestration or choreography, and thus act together as a single application.
- Instead of closed boundary conditions which will bring large pressure effects because of return flow, a flow through boundary condition is adopted.
- A liquid is mdae to flow through a siphon.
- A canyon usually has a river flowing through it.
- A flow of word is no proof of wisdom.
- Pens are produced through a flow process.