Kev tiv thaiv dej yog hais txog lub peev xwm ntawm cov khoom siv lossis cov khoom siv los tiv thaiv kev nkag mus lossis nkag mus ntawm cov dej mus rau qee yam.Cov khoom siv tsis muaj dej tsis zoo los yog cov khoom tiv thaiv cov dej nkag mus rau qee qhov, thaum cov khoom siv tsis muaj dej tsis zoo lossis cov khoom lag luam yog impervious rau txhua qib ntawm cov dej siab lossis immersion.Cov ntaub ntawv tsis muaj dej yog feem ntau siv los nag iav, khoom siv sab nraum zoov, khoom siv hluav taws xob thiab lwm yam kev siv uas muaj dej raug tab sis tsis tshua muaj.
Kev tiv thaiv dej feem ntau yog ntsuas hauv meters, atmospheric siab (ATM), lossis ko taw.
1. Dej tsis kam (30 meters / 3 ATM / 100 ko taw): Qhov dej tsis kam no txhais tau hais tias cov khoom tuaj yeem tiv taus cov txaws lossis luv luv rau hauv dej.Haum rau kev ua ub no txhua hnub xws li ntxuav tes, da dej, thiab tawm hws.
2. Dej Resistance 50 Meters / 5 ATM / 165 Feet: Qib no tuaj yeem tiv taus dej thaum ua luam dej hauv dej ntiav.
3. Waterproof 100m / 10 ATM / 330ft: Qhov dej tsis zoo no yog rau cov khoom lag luam uas tuaj yeem ua luam dej thiab snorkeling.
4. Dej tiv taus rau 200 meters / 20 ATM / 660 ko taw: Qhov kev tiv thaiv qib no yog tsim rau cov khoom lag luam uas tuaj yeem tswj cov dej tob tob, xws li cov kws tshaj lij divers.Thov nco ntsoov tias cov dej tsis ua haujlwm tsis tu ncua thiab yuav txo qis thaum lub sijhawm, tshwj xeeb tshaj yog tias cov khoom raug cuam tshuam rau qhov kub, siab lossis tshuaj lom neeg.Nws yog ib qho tseem ceeb los xyuas cov chaw tsim khoom cov lus pom zoo rau kev saib xyuas kom zoo thiab kev saib xyuas cov khoom siv dej tsis zoo.
Post lub sij hawm: Jun-07-2023