英语语法分析

An unmodulated stable laser system, which has been used as a tunable CO_2 laser sideband coherent source, is introduced.

本文介绍用于可调谐CO_2激光边带相干光源的稳频激光系统。

Threshold extension and adaptive noise reduction technology means that noise is 50 dB down for an unmodulated 13.5-dbf stereo signal.

扩展和自适应阈值降噪技术手段，噪音是50分贝下降为未调制的13.5支援数据库立体声信号。

The mobile apparatus comprises a reflector and performs reflection wave transmission by carrying data on a reflection wave for unmodulated carrier.

移动设备包括反射器，将数据加载在与未调制载波对应的反射波上并进行反射波传输。