speeding up and slowing down的意思|示意

This speeding up and slowing down of the side gears allows differential speeds at the drive wheels.

两个半轴齿轮的加速和减速从而实现了两个驱动轮之间的差速。

But when relaxed, variability is maximized, slowing down as you breathe out and speeding up as you breathe in.

但是当放松时，心率的可变性升到最高，呼气时变慢，吸气时加快。

This way you will keep track of your progress and it would be a good reference point to check if you are slowing down or speeding up in the changing of your behaviour.

这样你将追踪你的进展，会是一个好的参照，检查你是否在改变个人行为上减速或者加速了。