催化燃烧式气体传感器，用高纯的铂丝，绕制成线圈。在线圈外面涂以氧化铝或氧化铝和氧化硅组成的膏状涂覆层，干燥后在一定温度下烧结成球状多孔体。-Catalytic combustion gas sensor, with high-purity platinum wire around the coil made of. Online面涂outside to alumina or aluminum oxide and silicon oxide coating layer composed of pa
