检查中心轴承上的回旋式风箱是否损坏。
Check the convoluted air bellows on the centre bearing for damage.
院前检查中心接诊一47岁白人女性，计划实施腹腔镜胆囊切除术。
You are in the preadmission test center, seeing a 47 years-old white female scheduled for a laparoscopic cholecystectomy.
结果：无痛胃镜组检查前、检查中心率、血压的变化明显低于普通胃镜。
Results: the changes of the heart rate and the blood pressure before and during the painless gastroscopic examination were obviously lower than those of the common gastroscope.
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