青铜峡水电厂4号半门式起重机投入运行已30余年。

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三十余年。

Semi-portal crane No. 4 has been put into operation for 30 years at Qingtong Gorge Hydropower Station.

概述了青铜峡灌区的土壤盐碱化现状，并对其形成因素进行分析。

The paper summarizes the status of salinity soil in Qingtongxia Irrigation Distract, and analyzes the factors of its formation.

平原段(青铜峡至河口镇)，河床平缓，两岸为著名的银川平原和河套平原。

The plain part starts from Qingtong Gorge to Hekou town. It has stable and slow riverbed. On both sides are the famous Yinchuan plain and Hetao plain.