kev sib tw tsheb style tso qhov system yog qhov hloov kho tsis zoo rau lub tsheb txoj kev. … Ib cov yeeb nkab ncaj, piv txwv li, tuaj yeem ua rau cov pa tawm nrawm kom nce Qhov no yuav ua rau lub cav ua haujlwm qis dua 2, 000 lossis 2, 500 RPM, ua rau koj lub tsheb qeeb me ntsis los ntawm ib tug stoplight .
A PPC nkhaus tuaj yeem yog txoj kab ncaj nraim tsuas yog tias qhov marginal hloov pauv (MRT) tas li thoob plaws qhov nkhaus. MRT tuaj yeem nyob tas mus li yog tias ob qho tib si cov khoom lag luam sib npaug sib npaug thiab cov txiaj ntsig tau los ntawm lawv cov khoom lag luam kuj tseem nyob tas li .