Independent centralized tswj system: ib tug kov tuaj yeem nqa nce thiab nqis platform, rub cov yees, thiab kev nqa theem nrab. Nws yooj yim ua haujlwm thiab ua haujlwm tau zoo.
Platform tuaj yeem ua tiltable lifting, uas ua kom txhua yam kev sib tsoo tsheb nkag mus rau hauv thiab tawm platform yam tsis muaj lifter.