12月30日，工人在南水北调中线穿黄隧洞内施工。当日，南水北调中线两条穿黄隧洞工程二次衬砌混凝土浇筑完成，这标志着穿黄隧洞主体工程全部完工。位于河南省荥阳市与温县境内的穿黄工程是南水北调中线建设的关键性、控制性工程，横贯黄河河底的穿黄隧洞每条长4250米，其任务是将中线调水从黄河南岸输送到黄河北岸，向黄河以北地区供水。新华社发（徐宏星 摄）  On dec. 30,,Workers in the south-to-north water transfer project in yellow in the tunnel construction.On that day,Tunnel project of south-to-north water transfer project in the two secondary lining of concrete pouring,This marked in yellow tunnel subject project are completed.XingYangShi located in henan province and county in yellow in the territory of the project is the key of the construction of the south-to-north water transfer project/Control engineering,Across the bottom of the Yellow River in the tunnel every article 4250 metres long,Its task is to the middle route water diversion from the Yellow River south to the north shore of the Yellow River,To the north of the Yellow River water supply in the region.The xinhua news agency,(XuHongXing perturbation)

    12月30日，工人在南水北调中线穿黄隧洞工程黄河北岸隧洞口施工。新华社发（徐宏星 摄）     On dec. 30,,Workers in the south-to-north water transfer project in the tunnel engineering north shore of the Yellow River tunnel construction.The xinhua news agency,(XuHongXing perturbation)