Xov xwm

Hauv kev tsim kho ntawm tus IP tshaj tawm intercom system, lub nraub qaum -}} end end end neeg rau zaub mov tuaj yeem raug suav tias yog "lub hlwb" ntawm tag nrho cov system. Nws yog lub luag haujl...

Tawg - Tsab ntawv pov thawj yog siv hauv cov chaw muaj kuab thiab cov nroj tsuag tawg xws li cov nroj tsuag hluav taws xob thiab cov nroj tsuag tshuaj lom neeg. Lawv tau nruab nrog couppers thiab t...

Tawg -} Cov ntaub ntawv pov thawj Intercoms tau siv nyob rau hauv cov chaw ua haujlwm uas cov roj tawg tam sim no. Lawv txawv heev los ntawm cov xov tooj pej xeem thiab cov pa nyob rau hauv lub xub...

0.5W pej xeem thoob ntiaj teb {{1} Kev Sib Tham: Kev sib txuas lus sib tham tau qhia los ntawm cov chaw tsim khoom yog feem ntau 1 rau 3 mais. Txawm li cas los xij, tom qab sim, hauv cov chaw qhib,...

Dab tsi yog tawg -} pov thawj? Nws yog hais txog kev tiv thaiv kev tawg.

Raws li cov zaus thiab ntev ntawm qhov tshwm sim ntawm kev sib xyaw tawg, roj thiab cov pa hluav taws yuav tsum tau cais

Muaj zog tam sim no thiab tsis muaj zog yog wired sib cais thiab khiav los ntawm lawv tus kheej cov raj xa dej.

Qhov siab tshaj plaws nrug ntawm tus hais lus thiab lub chaw nres tsheb suab yog 30}} Cov thaiv npog tsis tau muab faib ua cov khoom zoo thiab tsis zoo. Txhawm rau kom muaj kev sib xws ntawm cov ka...

Thaum cov npav caij tsheb npav, ib puag ncig nrog kev cuam tshuam hluav taws xob muaj zog hluav taws xob yuav tsum zam.

Rau lub chaw siv hluav taws xob hauv nruab nrab, lub zog siv hluav taws xob ntawm lub xov tooj chaw nres tsheb yuav tsum tau ua tiav tag nrho.

Tam sim no, peb {{{- {-} cov khoom lag luam nrov hauv Suav teb siv (DNR).

Ntau lub chaw muaj kev lag luam, xws li cov roj thiab tshuaj lom neeg ua lag luam, cov nroj tsuag hluav taws xob, steel mills thiab chaw nres nkoj terminals, thiab lwm yam