Cov haujlwm ntawm lub qhov rooj nkoj yog tswj tau nkag thiab tawm ntawm cov neeg ua haujlwm nkag mus thiab kev tswj hwm ntawm cov neeg thauj khoom, suav nrog cov neeg caij tsheb, suav nrog cov neeg caij tsheb, suav nrog cov neeg ua haujlwm thiab kev tswj hwm ntawm cov neeg ua haujlwm thiab cov khoom lag luam tuaj yeem ua tiav
Kev Nyab Xeeb Kev Nyab Xeeb: Nkoj cov qhov rooj ua lub luag haujlwm tseem ceeb hauv nkoj kev nyab xeeb. Piv txwv li, cov qhov rooj watertight tuaj yeem tiv thaiv seawater los ntawm ntws mus rau hauv lub tsev ntoo, ua kom muaj kev nyab xeeb ntawm cov neeg coob thiab lub nkoj. Hauv cov xwm txheej kub ntxhov xws li cov hluav taws, cov qhov rooj watertight tuaj yeem ua tau zoo cais tawm ntawm cov hluav taws thiab tiv thaiv nws kis
Tsis tas li ntawd, nkoj hluav taws lub qhov rooj, ua ke nrog cov ntoo ntsa loog, tiv thaiv kev sib kis ntawm cov neeg ua haujlwm ntawm pawg neeg
Kev Tiv Thaiv Hluav Taws thiab Rwb thaiv tsev: Marine Hluav Taws Kub Qhov rooj muaj hluav taws kub tiv thaiv thiab cov rwb thaiv tsev zog. Raws li kev sib txawv ntawm cov hluav taws kub tiv thaiv hluav taws kub (a, b, h), cov qhov rooj hluav taws yuav tsum tau ua kom muaj kev sib txawv thiab kev tiv thaiv cov nplaim taws thiab cov pa taws los ntawm kev hla dhau. Piv txwv, chav kawm tua hluav taws yuav tsum tau kuaj qhov rooj 1 teev, thiab chav kawm h nplaim taws tiv thaiv 2 teev
Cov qhov rooj tua hluav taws no tuaj yeem tiv thaiv kev sib kis hluav taws thiab tiv thaiv kev nyab xeeb ntawm lub nkoj lub sab hauv thaum hluav taws.
