PNL 221 · Pneumatics LabSession 3 · Hour 1 · A valve that listensInstructor cue 버튼. 그다음 길.90 minNow Open · 5 min left · next Demo한ENScriptBodyClearHour 1A valve that listensHour 2Follow A valve that listensHour 3Your turn · A valve that listensHour 4Check A valve that listensThis browser cannot play the film.CheckA button. Then a path. Week 3: name, order, result. Then A button. Then a path.