1)flame test apparatus,火焰测定仪2)flame-observing tube,火焰观测仪3)flame scanner,火焰检测仪，火焰监视器4)flame ionization detector,火焰电离检测仪5)flame photometry,火焰光度测定6)FID(flame ionization detector),火焰离子化检测仪
用法和例句
In order to observe burning flame in various blast furnaces and kilns, such as brick-kiln, cement-kiln,steel-making furnace, coke oven and boiler, flame-observing tubes have been developed.