Netefatsa hore likarolo tsa phaephe tse otlolohileng tsa ≥10D holimo le ≥5D tlase (D = bophara ba phaephe) ho qoba tšitiso ea pompo/valve. Khetha mokhoa oa V (liphaephe tse nyane) kapa mokhoa oa Z (liphaephe tse kholo kapa maro a nang le viscous e phahameng) ho latela boholo ba phaephe le maemo a mokelikeli.
Nako ea poso: Mphalane-10-2025