基于临界带能量特征的语音识别技术研究，光学测距离原理图。
With energy based on the critical characteristics of voice recognition technology, optical distance measurement diagram.
他们还用在其他许多领先技术，如光学瞄准系统和激光测距。
They are also used in many other leading edge technologies such as optical sighting systems and laser range finding.
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