Lwm qhov tshwj xeeb ntawm kev ntim khoom tuaj yeem muab tau raws li cov neeg siv khoom xav tau
(O2 / N2, TSIS MUAJ CO2 / N2, NO2 / N2, C3H8 TSIS MUAJ CO2 / N2, thiab lwm yam.)
(O2 / N2, TSIS MUAJ CO2 / N2, NO2 / N2, C3H8 TSIS MUAJ CO2 / N2, thiab lwm yam.)
sib tov
Daim ntawv thov
Semiconductor
Hnub ci Photovoltaic
LED
Machinery Manufacturing
Kev lag luam tshuaj
Kev Kho Mob
Khoom noj khoom haus
Kev Tshawb Fawb Txog Kev Tshawb Fawb
