寧波鎮海專業行車龍門吊改造
、加長、截短技術專業
合理應用《工程力學》的基本原理對單梁起重機主梁的強度、gangdujinxingxiaohe，keyiyouxiaodejiejueshigongxianchangduidanliangqizhongjijiachanggaizaohousuoxuqizhongliangdeyansuan。youzhuyushigongxianchangjinxingshigonggaizao。tongguoduijisuandejinyibufenxi，tichulehelixuanzeshidangdeqizhongliang，quebaoshigonganquan，weiqiyezengjiaxiaoyi。