This occurs because during NREM sleep the automatic, metabolic system has exclusive control over breathing and the body uses less oxygen and produces less carbon dioxide.

这是因为在非快速眼动睡眠中，自动的新陈代谢系统对呼吸有排他的控制，身体消耗更少的氧气，产生更少的二氧化碳。

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The first is an automatic, metabolic system whose control is centered in the brain stem.

第一种是自发的新陈代谢系统，它的控制集中在脑干上。

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One of the small rockets of his automatic control system stopped working.

VOA: special.2009.06.17

This advanced version of automatic cruise control works alongside a system that corrects the car when it drifts out of its lane.

ECONOMIST: Motoring

The large 3.2-inch 921K dot LCD screen makes it easy to preview images or video captured, navigate the menu system or confirm critical HD focus, while automatic brightness control adapts seamlessly to changing lighting conditions.

ENGADGET: Nikon unveils lightweight, full-frame D600 DSLR -- hands-on and low-light samples (video)

S-class is an example, with an onboard navigation system to map your route, radar to watch the road ahead and automatic cruise control.

ECONOMIST: Luxury cars