(=behind-the-ear aid) 耳背式助听器, 耳后助听器,(=benzilic acid 3α-tropanyl ester) 二苯乙醇酸3α-莨菪酯,(=bisbentiamine) 双苯硫胺,(=bovine thymus extract) 牛胸腺浸膏,(=tropine benzylate) 莨菪醇二苯乙醇酸酯
