engine functioning的用法和样例：
例句
- The effects of thrust vectoring angle and angular velocity of vectoring on turbofan engine operation were investigated.
研究了矢量喷管偏转角和偏转角速度对涡扇发动机工作的影响。 - The second method of changing engine operating parameters means, in essence , operating fuel lean to increase combustion.
第二种改变发动机工作参数的方法的用意，本质上是用贫燃料来增加燃烧。
