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.本報警裝置是基於電話、作爲(wèi)電話的附屬物而開發(fā)的一種家用防盜報警裝置。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)計的電話遠(yuǎn)程報警器是基於DTMF（雙音雙頻信號）傳輸、作爲(wèi)電話的附屬物而開發(fā)的家庭遠(yuǎn)程報警系統(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