Kev faib tawm thiab cov yam ntxwv ntawm kev nce khaub ncaws ziab khaub ncaws

Lub tshuab ziab khaub ncaws ziab khaub ncaws yog cov khoom siv ziab kom qhuav hauv ob pawg niaj hnub raws li kev tsav tsheb: phau ntawv thiab hluav taws xob. Qee qhov siab -}}} kawg contret cov chaw taws teeb tswj cov chaw taws teeb tswj cov khaub ncaws kom qhuav racks ".

Cov tub ntxhais sib txawv ntawm ob tug lus dag hauv txoj kev ua haujlwm: txhais tes cranked hom los ntawm kev nqa tus pas nrig kom qhuav, xav tau lub teeb tsa ntawm lub kauj thiab sab saum toj nkhaus pulley; Cov qauv hluav taws xob qis rau lub cev muaj zog tsav thiab kev txhawb nqa hloov lossis wireless chaw taws teeb kev ua haujlwm. Qee cov qauv ntse kuj tseem ua haujlwm xws li teeb pom kev zoo, tshuaj tua kab mob, thiab cua kom qhuav.