短語詞組短語rock acoustic emission monitoring 巖體聲發(fā)射監(jiān)測儀acoustic emission monitoring system 聲發(fā)射監(jiān)測系統(tǒng)PAC Acoustic Emission Monitoring System PAC 聲發(fā)射監(jiān)測系統(tǒng) 返回 acoustic emission monitoring