英语语法分析

Intratympanic gadolinium therapy through eustachian tube is a safe and effective.

经咽鼓管鼓室内导入造影剂是安全、有效的给药新途径。

Objective To explore the effect of intratympanic gentamycin on intractable Meniere's disease.

目的探讨鼓室内注射庆大霉素治疗难治性梅尼埃病的方法、疗效及副反应。

Objective: to investigate the effect and toxicity of intratympanic gentamicin injection therapy for intractable vertigo of Meniere's disease.

目的：观察鼓室内注射庆大霉素治疗梅尼埃病的疗效和副作用。