常見(jiàn)例句雙語(yǔ)例句This thesis introduces the measuring principle, device composition and main functions of an intelligent acoustic impedance middle ear analyzer.介紹了一種智能化聲阻抗中耳功能分析儀的測(cè)試原理，儀器組成， 系統(tǒng)的主要功能等。They are characterized by ruggedness, light weight, high sensitivity, low acoustic impedance, easy conformability to complex surface, low cost and large bandwidth.它具有耐磨、量輕、霛敏度高、聲學(xué)阻抗低、容易固定在複襍的表麪、價(jià)格便宜，頻帶寬等特點(diǎn)。Acoustic impedance changes and hearing threshold shifts after exposure to impulse noise or air-blasts were studied in guinea pigs.本文利用豚鼠研究了脈沖噪聲和空氣沖擊波暴露後中耳聲阻抗的變化和聽(tīng)閾偏移。 返回 acoustic impedance