An oxidizing gas, preferably pressurized air, is periodically fed into the exhaust line by an oxidizing gas line for cleaning the drain line and {HEAD ~ the pressure} controlling {TAIL ~ aperture} therein by oxidizing the magnesium 
controlling
An oxidizing gas , preferably pressurized air , is periodically fed into the exhaust line by an oxidizing gas line for cleaning the drain line and { HEAD ~ the pressure } controlling { TAIL ~ aperture } therein by oxidizing the magnesium
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH