Ukuqhathaniswa komsebenzi wama-valve okuhlola amaShayina: Qonda isimiso sabo sokusebenza nokubaluleka
Kuhlelo lokulawula uketshezi, i-valve yokuhlola yaseShayina iyithuluzi elivamile umsebenzi walo oyinhloko ukuvimbela ukugeleza koketshezi okubuyela emuva. Lesi sihloko sizoxoxa ngokujulile ngesimiso sokusebenza kanye nokubalulekaI-valve yokuhlola yaseChinangokombono wezobuchwepheshe.