These measures include improvement of oxidation ceramics and heat insulator, mixing high concentration methane and controlling airinput.
具体措施包括：氧化陶瓷的改进、保温材料的改进、掺混高浓度瓦斯、控制进气量。
2
The relationship of airinput and Charging Efficiency is analyzed whether air condition is changed or not, and reasonable account of the result is given.
The air intakes are fitted with an adjustable half-cone shaped centrebody which provides an inclined shock of air pressure for highly efficient airinput.