The possibility density technology was used to entrap a little change of acoustical signal, which can discern the gas incursion and give the alarm efficaciously.
利用概率密度技术捕捉声信号的微小变化，能够有效地识别气侵并报警。
Precisely estimated time delay of acoustic wave signal is very important to implementing the most accurately measurement of temperature using acoustical method in the strong noise environment.
声波信号时延的准确估计是实现强噪声环境下声学法高精度测温的关键。
Automatic zero calibration with ambient air on every start of the system, optical and acoustical signal after finishing of calibration.
开启系统时，仪器会自动进行零校准。校准完毕后会出现光学和声学信号。
The question of passive localization of the underwater sources using matched-field processing is one of the hot topics in the field of underwater acoustical signal processing.
利用匹配场处理器技术对水下目标进行被动定位是国际水声界关注的热点问题之一。
Further, the acoustic detector may be operable to produce a signal representing the detected response by the construction material to the acoustical energy.
此外，声探测器可用于产生表示探测的建筑材料对声能的响应的信号。
Further, the acoustic detector may be operable to produce a signal representing the detected response by the construction material to the acoustical energy.
此外，声探测器可用于产生表示探测的建筑材料对声能的响应的信号。
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