词汇	Natural Validity
释义	Natural Validity 自然时效
随便看	direct vision direct-vision direct vision biopsy direct-vision comparison method direct-vision erecting prism direct vision finder direct vision heart operation direct vision internal urethrotomy direct vision kinescope direct vision method direct-vision method directvision nephoscope direct vision nephoscope direct-vision nephoscope direct vision objective prism direct-vision objective prism direct vision object prism direct vision orotracheal intubation direct vision panel direct vision port direct-vision port directvision prism direct vision prism direct-vision prism direct vision prisms