渤海之滨 ,海河之畔。伴随着祖国社会主义建设的前进步伐 ,铁道第三勘察设计院走过了近 5 0年不平凡的历程 ,闪耀着夺目的光彩。最近 ,铁道专业设计院加盟铁三院 ,实现了优势互补 ,强强联合 ,既为铁专院注入了活力 ,又使得铁三院如虎添翼。目前 ,铁三院正以矫健的雄姿 ,励精图 Bohai Sea, Haihe River. With the progress of the socialist construction in the motherland, the Third Railway Survey and Design Institute has gone through an extraordinary course of nearly 50 years and shines with a brilliant eye. Recently, the railway professional design institute joined the iron hospital, achieved the advantages of each other, powerful alliances, both for the iron college injection vitality, but also make the iron hospital more powerful. At present, the Iron Triad is a vigorous majestic figure