Txoj moo

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.

Raws li ib lub chaw ua haujlwm tsis zoo no feem pua ​​tsis zoo no feem pua ​​chaw ua si ib lub luag haujlwm tseem ceeb hauv kev tiv thaiv nruab nrab hauv ntau lub ntsej muag thiab pej xeem. Xaiv txoj cai kos lub valve yog qhov tseem ceeb rau kev ua haujlwm ruaj khov ntawm lub system.

Raws li cov khoom siv tseem ceeb rau kev tswj cov kua dej ntws hauv cov raj hluav taws xob, kev txij nkawm ntawm kev siv thiab ua haujlwm ib puag ncig kom paub tseeb kev ua tau zoo thiab txuas ntxiv lub neej kev pabcuam.

Rooj vag li qub tau siv dav hauv ntau txoj kev lag luam thiab pej xeem kav dej hluav taws xob, tab sis qee qhov kev ua tsis zoo tshwm sim thaum siv, cuam tshuam lawv txoj haujlwm ib txwm ua.