Black-black sensing element is a carrier catalyticelement for the detection of 0 ~ 4% methane in air.
黑黑元件是用来检测空气中0 ~ 4%甲烷气体的载体催化元件。
2
The temperature control of the producing process of a planar carrier catalyticelement has been operated manually so far, which has influence on both identity and productivity of the element.
平面型载体催化元件制作过程的温度控制一直沿用手工操作，从而使元件的一致性与成品率受到较大影响。
3
XPS data reveal that the state and the content of nitrogen element in the surface layers correlate fairly with the catalytic activity.