balloon 8
气球8
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Methods: 8 cases were diagnosed with barium meal by X-ray therapy before operation, by dilating gradually single balloon to double balloon.
方法：本组8例病人，术前经X线钡餐造影检查确诊，用从单球囊到双球囊逐渐扩张的方法连续多次扩张。
youdao
It is compressed, along with a balloon, into an 8 millimeter catheter that is threaded up from an incision in the groin into the heart.
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