NeuroSky's online store offers apps such as Speed math, which monitors players' attention levels as they solve maths challenges.

神念的网上商店提供各种应用程序。诸如心算，游戏中，玩家在解决数学挑战的时候，耳机会检测他们的专注力水平。

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This technology has been available in aircraft for 50 years and is already available in a few vehicles (mostly with limited information such as speed displayed).

这项技术已经在飞机上使用了50年，而且已经在一些车辆上使用（大部分只有有限的信息，如车速显示）。

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Just as the title of this section suggests, there are different ways to provide transportation, and they each have unique features such as speed, capacity, and distance.

正如本节标题的意思一样，提供运输的方式有多种，每种方式都有其特点，例如速度、容量和距离。

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"It includes three hundred million dollars to buy new cars for the government, eight billion dollars for high-speed rail projects, such as a 'magnetic levitation' line from Las Vegas to Disneyland, and one hundred forty million dollars for something called 'volcano monitoring.'

VOA: special.2009.02.27

Eight of the schemes are near schools and seven include traffic calming measures such as speed bumps.

BBC: Leicester 20mph zones given go-ahead

Like a laptop, slates will be judged on factors such as speed, screen size, and battery life.

ENGADGET: Switched On: The weighty issues of slates

Also, other traffic trends or enforcement measures, such as speed cameras, could account for changes in crash rates.

WSJ: Hard to Put Red-Light Violations Under a Lens