Research Article

Study on Change Rules of Factors Affecting Gas Loss during Coalbed Air Reverse Circulation Sampling

Figure 1

The experimental system. (a) Schematic diagram of the experimental system. (b) Physical map of the experimental system: ① Conveying pipeline. ② Particle analyzer. ③ High-speed camera. ④ Bunker. ⑤ Concentrator.
(a)
(b)