rigid sigmoidoscope助用的硬式乙状结肠镜;硬式乙状结肠镜
recto sigmoidoscope直肠乙状结肠镜
sigmoidoscope c乙状结肠镜
sigmoidoscope examination乙状结肠镜检查
sigmoidoscope S状结肠镜
sigmoidoscope with obturator带通芯的乙状结肠镜
flexible fiberoptic sigmoidoscope软性光导纤维乙状结肠镜
flexible fibreoptic sigmoidoscope挠屈性纤维光束乙状结肠镜
N（名词） an instrument incorporating a light for the direct observation of the colon, rectum, and sigmoid flexure 乙状结肠镜