If you could move at the speed of light, your time would stand still, if you could move faster than light, your time would move backward.
如果你能以光速运动，你的时间就会静止不动；如果你能以快于光速的速度运动，你的时间就会倒退。
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。
Hummingbirds are well known for their wing speed and ability to hover and fly forward and backward with more precision than a helicopter.
众所周知，蜂鸟的翅膀拍打速度极快，它即可以凌空悬停，也可以快速向前飞行和向后飞行，其飞行的精准度甚至超过了直升机。
We will speed up efforts to shut down backward production facilities.
加快淘汰落后生产能力。
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.
最后步骤启动，这时蒸汽被导入汽缸从而驱使活塞像向前一样的向后，从而提高引擎的速度切断燃料的耗费。
When the level of the rear one-way throttle valve is turned counterclockwise, the backward traveling speed of the cylinder and sucking speed increase.
逆时针转动后单向节流阀手柄，气缸后退速度加快，吸料速度也加快。
Keep track of these verification steps in a notepad in order to speed up backward verifications when progressing in the exam.
在记录板上记录下这些验证，以便在考试中加快回顾验证的速度。
Keep track of these verification steps in a notepad in order to speed up backward verifications when progressing in the exam.
在记录板上记录下这些验证，以便在考试中加快回顾验证的速度。
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