求翻译：日本明石海峡大桥是世界上目前最长的吊桥，大桥于1988年5月动工，1998年3月竣工，其主跨1991米（960+1991+960），全长3911米，为三跨二铰加劲桁梁式吊桥.是什么意思？

Japan's Akashi Kaikyo Bridge is the world's current longest suspension bridge, the bridge started in May 1988, completed in March 1998, its main span of 1991 meters (960 +1991 +960), length 3911 m, for the three-span two joints stiffening truss-type bridge.

japan The Akashi Strait Bridge is at present the longest suspension bridges in the world, and the bridge in May 1988, construction was completed in March 1998, its main span 1991 + 1991 + 960 m (960 ) for a total length 3911 meters, which is 3 2 strategies across the stamina Leung truss-style suspen

The Japanese alum channel bridge was in the world the present longest hanging bridge, the bridge begins construction in May, 1988, in March, 1998 was completed, its main span 1991 meters (960+1991+960), the span 3911 meters, were three cross two articulations try harder the braced girder type hangin

Japan is currently the longest suspension bridge in the world of the Akashi-Kaikyo Bridge, the bridge started in May 1988, completed in March 1998, its main span 1991 m (960+1991+960), is 3,911 meters long, for the three-span two-hinged stiffening truss girder suspension bridges.

The straits bridge of the bright stone in Japan are the longest suspension bridge at present in the world, the bridge was started building in May of 1988, completed in March of 1998, it mainly stepped 1991 meters (960+1991+960), total length is 3911 meters, stepped and cut with scissors and put more