That shouldn't be a danger with PowerBeam's products: if the small camera on the transmitter fails to see the small light bulb of the receiver, it shuts down the laser within milliseconds.

Power beam公司的产品应该不存在这样的危险：如果传输器上的小摄像头没能捕捉到接收器灯泡发出的微弱光线，激光就会在几微秒内关掉。

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They are even collaborating with a group in China that will launch a satellite in 2016 which should be able to bounce light waves from a sender on one part of the Earth to distant receiver elsewhere.

他们甚至与中国的一个团队合作，于2016年发射一个卫星，从在地球某一部分的发射器向另外一处远距离的接收装置反射光线。

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The principle of measurement is as follows: a probe, which features a transmitter and receiver of red and infrared light, is positioned to transilluminate a pulsatile arteriolar bed.

测量原理如下：一个传送和接收红光和红外光的探针放置并透照搏动的微动脉床。

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