The average operation time was 1 hour.

全组病人平均手术时间1小时。

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Waterflood system efficiencies are made up with the average operation efficiency of motors, water injection pumps and pipe networks.

注水系统效率由电机平均运行效率、注水泵平均运行效率和管网运行平均效率组成。

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There are no significant differences in the average operation time, bleeding in operation and the preserved time of installing catheter after operation between the two groups.

两组病例手术的术中出血、手术时间、术后尿管留置时间均无显著差异。

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It found that the average waiting time for an operation, once a patient had been assessed by a consultant, remained unchanged at an average of eight months, compared with the NHS maximum target of 12 months.

BBC: Patients get untested hips

Annual production in the first full five years of operation is expected to average 800, 000 to 850, 000 ounces of gold and 35 million ounces of silver, Barrick said.

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The scientists carried out the operation on 173 infertile men, and on average, found the men's sperm motility and count had improved within three months.

BBC: NEWS | Health | Surgery 'restores male fertility'