Kev lag luam xov xwm

Lub pob valve muaj kev sib tw zoo ua tau zoo, ua tsaug rau nws cov qauv tsim qauv thiab cov khoom siv. Lub pob valve siv pob ua qhov qhib thiab kaw lub caij, thiab tuaj yeem qhib thiab kaw los ntawm kev sib hloov 90 degrees.

Dab tsi media yog pob li qub rau?

Pob valve yog ib hom ntawm valve nrog spherical qhib thiab kaw tivthaiv. Nws muaj cov qauv kev cog lus thiab cov haujlwm sib txawv.

Lub neej ntawm daim tshev mis yog feem ntau ntawm 2 thiab 10 xyoo, thiab lub sijhawm tshwj xeeb yog cuam tshuam los ntawm peb yam: cov khoom siv, kev siv ib puag ncig, thiab muaj zaus.

Puas yog tus kos duab hluav taws xob tsis zoo? Cov hau kev no yuav pab koj ua tiav Txheeb xyuas cov khoom qub ua haujlwm hauv lub luag haujlwm tseem ceeb hauv kev tiv thaiv nruab nrab rov qab hauv cov raj xa hluav taws xob.

Kev tsim txom tsis raug ntawm cov tshev yuav muaj peev xwm muaj lub txim tseem ceeb Txheeb xyuas cov khoom qub ua haujlwm hauv lub luag haujlwm tseem ceeb hauv kev tiv thaiv nruab nrab rov qab hauv cov raj xa hluav taws xob. Kev teeb meem tsis raug cai tuaj yeem ua rau muaj teeb meem loj.