Kev kho mob qab zib pendant yog ib qho kev siv roj hluav taws xob tsis tseem ceeb rau chav ua haujlwm niaj hnub no. Nws yog tsuas yog siv rau kev hloov pauv ntawm cov pa hluav taws xob xws li cov pa oxygen, Suction, huab cua compressed thiab nitrogen hauv chav ua haujlwm. Lub ntsiab zoo: kev nqa ntawm cov khoom siv platform yog tswj hwm los ntawm lub cev muaj zog, uas muaj kev nyab xeeb thiab txhim khu kev qha; Tus qauv tsim hluav taws xob ntsuas hluav taws xob tuaj yeem lav tau theem ntawm cov khoom siv platform thiab kev nyab xeeb ntawm cov khoom siv; Lub zog tsav ntawm lub cev muaj zog tuaj yeem lav cov haujlwm nrawm thiab ua haujlwm tau zoo ntawm cov khoom; Khoom tsim qauv thiab chaw tsim khoom thiab cov qauv siv tau rau cov nplaim hluav taws xob cov tshuaj ntxuav kom huv si tuaj yeem tiv thaiv kev ua qias tuaj tuaj yeem tiv thaiv kev ua paug.