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大连兴建我国首座跨海大桥我国第一座跨海大桥是普兰店湾大桥,已在大连市动工兴建,它将把大连和沈阳两市连通。这座宏伟的跨海大桥,是我国目前最大的预应力混凝土双截面鱼腹梁跨海大桥,是沈大公路的关键工程,大桥横跨普兰店海湾,北起瓦房店市邓屯乡韭菜坨子,南至金州区石河镇黄旗村,全长1646.5米。大桥竣工后,汽车在桥上可用一两分钟就飞跨近两公里的海湾。江西省聂都山区发现“地下奇宫”江西省聂都山区在崇义县城西南部50公里,海拔1400米,绵延40公里。在这座山的中部、面积1平方公里内发现由数十个岩洞组成的神奇的“地下宫殿”。这些洞都是洞洞相通,每两芜洞口之间的距
Dalian builds China’s first sea-crossing bridge The first cross-sea bridge in China is the Pulandian Bay Bridge, which has been built in Dalian and will connect Dalian and Shenyang. This magnificent cross-sea bridge is China’s largest prestressed concrete double-section fish-belly bridge across the sea. It is a key project of Shenda Highway. The bridge spans the Pulandian Gulf, and is from the north of Weifang Town, Wafangdian City. Scorpion, south to Jinzhou District, Shihe Town, Huangqi Village, total length of 1646.5 meters. After the bridge is completed, the car can fly over the bridge for nearly two kilometers in one or two minutes on the bridge. The Niedu mountain area in Jiangxi Province was found in the “underground Qigong” and Niedu mountainous area in Jiangxi Province was 50 kilometers southwest of Chongyi County, with an altitude of 1400 meters and a length of 40 kilometers. In the middle of the mountain, an amazing “underground palace” consisting of dozens of caves was discovered within an area of 1 square kilometer. These holes are connected by holes and the distance between each two holes is