1.煤烟(灰),烟炱,油烟;锅灰
1.煤烟弄脏,弄得尽是煤烟
1.a dirty black powder that is produced when you burn something such as coal or wood
1.Designed for relatively volatile 'Heavy Fuel Oil' applications or 'sooted or fly-ash' covered Fuel Ignitors.
专为相对不稳定的重燃料油应用或煤灰或烟灰覆盖的燃料点火器而设计。