Capsule subglobose, ca. 9 mm in diam., valves slightly smooth and flat, not obviously angulate.
蒴果近球形，长约9毫米直径，裂爿稍变平静，平，不显而易见具棱。
Herbs annual. Stems decumbent or erect, 30-90 cm tall, branched, angulate , with sparse retrorse prickles along angles.
一年生草本茎外倾或直立，30-90厘米高，分枝，具棱，具稀的反折的皮刺沿着棱。
Main Outcome Measurements: The capsule was manipulated in the esophagus for 10 minutes. It was easy to make the capsule turn somersaults and to angulate at the cardioesophageal junction.
主要检测指标：食管内操作胶囊内镜10分钟，观察显示胶囊内镜很容易在食管内翻跟头以及在胃贲门食管连接处转角。
Main Outcome Measurements: The capsule was manipulated in the esophagus for 10 minutes. It was easy to make the capsule turn somersaults and to angulate at the cardioesophageal junction.
主要检测指标：食管内操作胶囊内镜10分钟，观察显示胶囊内镜很容易在食管内翻跟头以及在胃贲门食管连接处转角。
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