Application of near infrared laser diode to gassensing is reviewed, followed by discussion on both the device characteristics and experimental techniques.
综述了近红外激光二极管在气体传感中的应用，讨论了用于这一技术的器件和实验技术。
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Thereafter, to use ULF geological remote sensingdevice on ground surface can block out gas concentration range and predict its extent.