常見例句雙語例句As an appurtenance of telephone, this alarm equipment is used to be alarm device for private house protect based on telephone system.本報(bào)警裝置是基于電話、作為電話的附屬物而開發(fā)的一種家用防盜報(bào)警裝置。cyggao.comAs an appurtenance of telephone, this remote alarm equipment is used to be an alarm for private house protect based on the transmission of DTMF(Dual Tone Multiple frequency ).本文設(shè)計(jì)的電話遠(yuǎn)程報(bào)警器是基于DTMF（雙音雙頻信號(hào)）傳輸、作為電話的附屬物而開發(fā)的家庭遠(yuǎn)程報(bào)警系統(tǒng)。Safety guardrail is an important appurtenance to ensure traffic safety.防撞護(hù)欄是確保交通安全的重要設(shè)施。 返回 appurtenance