The screen works by shining light upwards through the screen, which bounces back to a layer of sensors behind the screen.

该触屏电脑的工作原理是——电脑内部发出闪光穿透屏幕，遇到物体时再反射回电脑屏幕后的传感器。

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Users can control one of the sensors to manipulate its camera and laser rangefinder with a touch screen and stylus while an automated control flies the UAV, writes Richard Whittle of Aviation Week.

当无人机采用自动控制飞行时，用户可以控制任一传感器，通过一个触摸屏和手写笔来操纵摄像头和激光测距仪。

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The sensors are important because Hinckley’s whole concept is that a dual-screen device should be able to switch configurations on the fly depending on what “posture” it’s in.

这些传感器十分重要，因为这个设备取决于它的“姿势”使屏幕作出构造上的变换。

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Up to 48 kids recreate the dances displayed on a large screen, while sensors in the wireless dance platforms record data about how well they are doing.

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In a typical session, the athlete will sit before a large screen as sensors monitoring electrical activity in his or her brain are placed on the scalp.

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Two sensors just below the screen detect when you reach toward it and automatically trigger more information to appear for example, play, pause and other controls show up along the bottom of the audio menu.

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