rate of air to fuel

• 空燃比

rate of air to fuel的用法和样例：

例句

1. In order to achieve highly precise control of AFR, highly precise measurement of both intake air and injected fuel have to be first achieved.
   要实现高精度的空燃比控制就需要同时满足对进气量的高精度的测量和对喷油量的高精度控制。