Thawj qhov uas yuav tsum tau hais yog tias lub xov tooj txawb lub hnab dej tsis muaj dej tsis yog 100 feem pua. Cov nyhuv dej tsis zoo ntawm lub hnab ntim dej tsis muaj kev txwv, thiab nws tsuas tuaj yeem ua nws lub luag haujlwm yog tias nws siv nyob rau hauv ib puag ncig qhia los ntawm cov khoom. Cov hnab ntim dej tsis zoo tsuas yog cov khoom siv dej tsis zoo xwb, thiab tsis tuaj yeem ua tau raws li cov qauv kev tshaj lij. Cov yam ntxwv xws li dej siab, qhov kub thiab txias, thiab lub sijhawm immersion yuav cuam tshuam rau cov dej tsis zoo. Cov dej siab dhau lawm (xws li dhia dej, dej tsis sib haum), qhov kub siab tshaj qhov txwv (xws li da dej kub, qhov dej kub lossis ib puag ncig uas muaj dej kub tsawg), thiab dej tsis zoo (xws li dej hiav txwv) yuav ua rau cov dej tsis zoo. los yog ua tsis tiav. . Qee lub hnab ntim dej tsis tuaj yeem tsuas yog tiv thaiv dej los yog txaws, thiab tsis tuaj yeem ntub dej rau lub sijhawm ntev. Tom qab kev yuav khoom, cov neeg siv khoom yuav tsum tau nyeem phau ntawv qhia kom zoo kom nkag siab, yuav thiab siv raws li lawv tus kheej xav tau, thiab yuav tsum tsis txhob cia siab rau tus kheej kev paub.
Ua ntej siv, xyuas lub hnab dej tsis zoo ntawm nws tus kheej kom pom tias nws puas, tawg, thiab cov khoom yuav nyuaj thiab nkig; Tom qab lub xov tooj ntawm tes tau muab tso rau hauv, huab cua hauv lub hnab yuav tsum tau tso tseg kom ntau li ntau tau kom tsis txhob muaj cua hauv lub hnab hauv qhov chaw siab. Ua tib zoo xyuas qhov kev sib khi ntawm lub sealing sawb thiab ua qhov kev sim sealing tsim nyog; xyuam xim rau qhov chaw cia khoom tom qab siv. Tsis txhob siv cov hnab ntim dej tsis zoo uas muaj cov khoom tsis zoo rau lub sijhawm ntev.
After understanding the functions and precautions of waterproof bags, it is time to buy. There are waterproof bags for sale in stores around swimming pools, water parks and hot springs. It is best to choose a waterproof bag with many sealing strips and a thick texture when purchasing. Check the instructions, certificate of conformity, etc. to avoid buying fake and inferior products. Some online stores sell waterproof bags at a "cabbage price". Consumers should avoid the psychology of greed for cheap, and should choose large shopping malls to buy branded products to ensure the safety of use.
