Xov xwm kev lag luam

  • Post lub sij hawm: 04-19-2021

    Daim ntawv tshaj tawm kev lag luam tau taw qhia tias cov txiaj ntsig ntawm LED kev lag luam yuav raug txhim kho tom qab qhov kawg ntawm kev lag luam poob qis raws li kev sib koom ua ke ntawm kev sib kis thiab kev xa khoom thiab kev thov. Ntawm ib sab, kev lag luam ntim tau pom qhov kev hloov pauv tseem ceeb hauv kev tsim khoom, thiab ...Nyeem ntxiv»

  • Post lub sij hawm: 04-19-2021

    Thaum Lub Plaub Hlis 2, Pawg Tswj Xyuas Kev Tswj Xyuas Txheej Txheem Hauv Tebchaws tau tshaj tawm tshaj tawm qhov kev ncua sijhawm ntawm kev siv 13 lub teb chaws tus qauv suav nrog "Unitary Air Conditioner Energy Efficiency Limits thiab Energy Efficiency Ratings". Raws li kev tshaj tawm ...Nyeem ntxiv»