11. There is a rich mixture of tree types and rare and local species are present. 12. Thus the cuisine is a rich mixture of tastes. 13. The current generation is a rich mixture of attackers, but the defense remains a question mark. 14. True diversity would explore all sorts of stories from America's rich mixture of ethnicities and cultures. 15. The oxygen-rich mixture is fed at the rate of three or four liters of oxygen per minute. 16. Prolonged operation at rich mixtures can cause catastrophic failure of the catalytic converter ( see backfire ). 17. The rich mixture has less air to burn and some of the fuel turns into a carbon deposit. 18. Rich mixture causes an oxygen demand.19. This is called a fuel-rich mixture . 20. The current crop of table runners look like ecclesiastical stoles-- rich mixtures of brocade, moire, tapestry fabrics, for example.
