Still, the new engine gets a 14-to-1 ratio for fuel-air compression, compared with the more common 10-to-1 ratio for engines.
新款引擎的燃料空气压缩率高达14比1，而一般的引擎只有10比1。
2
Stoichiometric ratio of fuel-air mixture is 0.4. Convection heat exchange has adopted as a boundary condition of external surface.
燃料-空气混合物的当量比为0.4，燃烧器外壁面与环境采用对流换热边界条件。
3
The research shows it is feasible that aluminum foam is applied in fuel-air explosion and it can attenuate shock waves generated by fuel-air explosions effectively.