composite engine的用法和样例：
例句
- In a radial engine all the cylinders are set in a circle and all point toward the center of the circle.
在径向式发动机里，所有的气缸都布置在一个圆圈里，而且都指向圆心。 - The paper also describes the effects of the structure that formed the fuel impinging mixture on engine performance in details.
此外，还详细介绍了这种轴针式喷油嘴产生的不同形式的碰撞效果对直喷式发动机性能影响的研究结果。
