The final step came when steam was introduced into the cylinder to drive the piston backward as well as forward, thereby increasing the speed of the engine and cutting its fuel consumption.
最后一步是将蒸汽引入气缸，使得活塞前后推动，从而提高了发动机的速度，降低了燃料消耗。
2
Having established the system core, extensibility mechanisms, and acceptable performance, the final step was to apply cross-cutting concerns to the system.
在建立了系统核心、可扩展机制和可接受的性能之后，最后一个步骤就是将横切关注点应用到系统。
3
A final study presented participants with cutting-edge findings from world-leading physicists on the possibility of divine intervention in the universe.