《英汉医学词典》Ectodermal layer of pars tensa of tympanic membrane 鼓膜紧张部外胚层 pars tensa of tympanic membrane: 鼓膜紧张部pars flaccida of tympanic membrane: 鼓膜松弛部circular layer of tympanic membrane: 鼓膜环层cutaneous layer of tympanic membrane: 鼓膜表皮层epithelial layer of tympanic membrane: 鼓膜上皮层下载手机词典可随时随地查词查翻译