1. The unburned brick can be stably used under high-temperature vacuum melting conditions after the content of graphite in the brick is reduced.

2. Reduces air pollution by minimizing the discharge of unburned hydrocarbon.

3. The unburned coal contributes more to NO reduction in the coal reburning zone.

4. The unburned gasoline or carbon monoxide come out the tail pipe.

5. The result is that unburned gasoline or carbon monoxide come out the tail pipe.

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6. Feed it as well with unburned and uncombined foods because that which is simple and natural is best.

7. Hydrocarbons ( HC ), like carbon monoxide, represent unburned and wasted fuel.

8. Unburned or partially burned oil in the exhaust gases contributes directly to hydrocarbon and particulate emissions.

9. Feed well with unburned and uncombined foods because that which is simple and natural is best.

10. As binding agent, used for fireproof heat insulation casting material, fabricated parts , fireclay and repairing material, plastic unburned brick etc.

11. The remainder of the air-fuel charge in the combustion chamber can consist solely of fresh and residual gases, without unburned fuel.

12. Through analyzing the combustion process of pulverized coal(PC) and source of unburned PC, the combustion characteristics of PC is studied by means of coal petrography.

13. These filters reduce air pollution by minimizing the discharge of unburned carbon monoxide.

14. If the flammable gas supply cannot be shut off, the continued escape of unburned gas can create an explosive mixture in the air.