Cov dej tsis kam lees txog qhov muaj peev xwm ntawm cov khoom siv lossis cov khoom siv los tiv thaiv kev nkag mus lossis nkag mus rau hauv dej mus rau qee yam. Cov khoom siv dej tsis muaj dej lossis cov khoom tiv thaiv cov dej ntws mus rau qee yam, thaum cov khoom siv dej lossis cov khoom tsis yooj yim dua rau ib qib ntawm cov dej siab lossis kev raus dej. Cov ntaub ntawv dej tsis muaj nyob rau hauv cov nag iav, cov khoom siv sab nraum zoov, khoom siv hauv tshuab hluav taws xob thiab lwm yam kev thov dej yog qhov ua tau tab sis infrequent.
Cov dej tsis kam yog feem ntau ntsuas hauv meters, atmospheric siab (atm), lossis taw.
1. Dej tsis kam (30 meters / 3 atm / 100 ko taw): Qib ntawm cov dej no txhais tau tias cov khoom tuaj yeem tiv taus cov dej txhaws. Haum rau txhua hnub ua si xws li ntxuav tes, da dej, thiab tawm hws.
2. Dej tsis kam 50 meters / 5 ATM / 165 ko taw: Cov qib no ntawm kev tiv thaiv tau thaum da dej hauv dej hiav txwv ntiav.
3. Waterproof 100m / 10 ATM / 330ft: Qib Waterproof yog rau cov khoom lag luam uas tuaj yeem ua rau ua luam dej thiab snorkeling.
4. Cov dej tsis kam rau 200 meters / 20 atm / 660 tshuam: Qhov kev tiv thaiv no yog qhov tsim nyog rau cov khoom lag luam uas muaj peev xwm ua kom muaj ntau yam. Thov nco ntsoov tias cov dej tsis kam yog tsis tas mus li thiab yuav txo lub sijhawm, tshwj xeeb yog tias cov khoom raug rau ntau qhov kub, siab lossis tshuaj lom neeg. Nws yog ib qho tseem ceeb los kuaj cov chaw muag khoom pom zoo rau kev saib xyuas kom zoo thiab saib xyuas cov khoom siv dej tsis huv.
Lub sij hawm Post: Jun-07-2023