When the water reaches a certain level, it moves a lever and this shows the hours.

水位达到一定高度时，水将推动一个控制杆，从而显示时间。

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After the speed reaches a certain level, it will no longer increase any more.

当速度增加到一定程度之后，就不在增加。

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Once this reaches a certain level, the detector automatically activates the foghorn.

一旦湿度达到了一定的数值，探雾器就会自动激活雾号。

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Once the battery charge reaches a certain level it operates like a typical hybrid-powered vehicle, with the 2.0-liter gasoline engine doing most of the work.

FORBES: Ford C-MAX Hybrid/Energi