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。
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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