saying);速度的定位(positioning for speed);出其不惫的定位 (positioning for surprise):改变竞争的规则(shifting competi-
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与全球定位系统、加速度计、陀螺仪和指南针结合使用，可用于具有地面精度的室内导航。
Used in combination with GPS, an accelerometer, a compass and the gyroscope can be used for in indoor navigation with floor accuracy.
它利用全球定位系统来测量汽车的速度，利用加速计来测量加速，刹车和转弯时汽车所受到的力。
It USES GPS to measure a vehicle's speed and a set of accelerometers to measure the forces acting on the car as it accelerates, brakes and turns.
通过这种三角定位的方式，如果设备必须要从苹果上下载东西的时候，它每次的响应速度会比较快，否则的话，需要等待一分钟左右，以便接收经过的GPS卫星发出的微弱信号（进行定位）。
That way, the device responds quicker than it would if it had to download the data for triangulation each time from Apple, or wait a minute or so for the faint signal from a passing GPS satellite.
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