Peb lub thawv xa khoom kas fes lub tswv yim tsim qauv nrog hydraulic system thiab ru tsev terrace yog kev kho tshiab thiab ntau yam kev daws teeb meem rau koj lub lag luam kas fes pib lag luam. Peb lub kas fes ntim cov khoom lag luam yog ib qho ntawm peb qhov kev hloov pauv zoo tshaj plaws peb tau tsim thiab tsim khoom rau cov neeg siv.Peb peb yuav saib xyuas txhua yam ntawm kev txiav txim siab lub thawv (tshiab lossis siv) rau kev hloov kho thiab haum nws nrog txhua qhov chaw koj xav tau.
