Becka贝卡
beckn.点头;招手;(英)小溪v.<古>点头;招手Beckn.贝克(姓)
Beckmann's middle turbinate scissors做某事很熟练
Beckmann-Eaton laminectomy retractor贝-伊二氏椎板切除术牵开器
Beckmann-Adson self-retaining retractor贝-阿二氏(自)固定牵开器
Beckmann's molecular weight determination apparatus贝尔断陷