Here is emergency brake button.

这里是紧急停车按钮。

I have an emergency brake.

我急刹车了。

You use the emergency brake to drop the flaps.

当你使用紧急刹车来放襟翼。

Some cars have an adjuster that is actuated when the emergency brake is applied.

有些汽车在紧急制动时会用自激励调节器。

Why shouldn't passengers pull the emergency brake when the train stops in the tunnel?

为什么区间停车时不能擅自拉下紧急拉手？