The phenomenon of heating furnace backfiring, the description is correct ( ).
The phenomenon of heating furnace backfiring, the description is correct ( ).
The phenomenon of heating furnace backfiring, the description is wrong ( ).
The treatment of black smoke from the chimney of the heating furnace, the description is wrong ( ).
The treatment of black smoke from the chimney of the heating furnace, the description is wrong ( ).
The treatment of black smoke from the chimney of the heating furnace is wrong ( ).
The treatment of black smoke from the chimney of the heating furnace, the description is wrong ( ).
The operation of the steam purge line, stated incorrectly is ( ).
The operation of the steam purge line, stated incorrectly is ( ).
The operation of the steam purge line, stated incorrectly is ( ).
The operation of the steam purge line, stated incorrectly is ( ).
Treatment of water at the top of the tower backflow, the description is wrong ( ).
The treatment of water in the reflux zone at the top of the tower is described incorrectly ( ).
Treatment of water at the top of the tower backflow, the description is wrong ( ).
The treatment of water in the reflux zone at the top of the tower is described incorrectly ( ).
