混流式水轮发电机组
类型：混流式水轮机组预装（转轮+主轴+导水机构）
Type: Francis turbine pre-assembly (runner + main shaft + distributor)
工艺：厂内预装、同心度与间隙检验、整机试运转
Process: In-house pre-assembly, concentricity and clearance inspection, complete unit test run
特点：装配精度高、运行振动小、现场安装周期短
Features: High assembly precision, low vibration and short on-site installation period