Ib nrab-gantry crane yog ib tug crane nrog ib kawg ntawm tus choj nqaj ncaj qha txhawb nqa ntawm txoj kev los ntawm cov neeg saib xyuas.
Weiua hluav taws xob hoistSemi-gantry crane muaj kev ua haujlwm zoo dua, kev nyab xeeb thiab kev ntseeg siab, lub zog hluav taws xob, suab nrov ib puag ncig, thiab ib puag ncig ua phooj ywg. Nws yog haum rau kev nqa khoom thiab thauj cov khoom nyob rau hauv cov chaw xws li kev cob qhia, chaw khaws khoom, thiab cov chaw nres tsheb fais fab uas tus choj crane tsis haum.
Kev xaiv zoo tshaj plaws rau cov ntawv thov me me thiab nruab nrab, hluav taws xob semi-ganing cranes tau siv dav hauv kev ua haujlwm, thiab cov khoom siv cov khoom siv yooj yim thiab ua haujlwm. Qhov kev lag luam crane no ua haujlwm nrog rau cov nqaj tseem ceeb nrog rau cov nqaj loj, thiab cov khoom siv qis dua, thiab cov khoom siv hluav taws xob. Tshwj xeeb yog tsis yog lub zog hluav taws xob haj yam muaj hluav taws xob ua kom zoo nkauj, uas cov txav tau yooj yim raws qhov chaw ntawm lub ntsiab ntawm lub ntsiab ntawm lub nkoj loj. Tsis tas li ntawd, Gantry tus qauv tsim yog ingenious: ib tug outrigger tso cai rau lub tshuab ua haujlwm tau yooj yim ntawm txoj kab khiav hauv lub tsev ua haujlwm. Qhov kev tsim qauv no zoo tshaj plaws ntawm kev siv thaum tswj cov qauv kev cog lus.
