No. 4 semi-portal crane has been used in Qingtongxia Hydropower Station for more than 30 years.
青铜峡水电厂4号半门式起重机投入运行已30余年。
Semi-portal crane No. 4 has been put into operation for 30 years at Qingtong Gorge Hydropower Station.
青铜峡水电厂4号半门式起重机投入运行已三十余年。
Semi-portal crane No. 4 has been put into operation for 30 years at Qingtong Gorge Hydropower Station.
青铜峡水电厂4号半门式起重机投入运行已三十余年。
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