| 摘要 |
The centrifugal pump (1) comprises a plurality of pump stages which are axially arranged between a top part (4) and a base part (2). The pump stages are peripherally surrounded by an outer casing (3), and axial end of the outer casing (3) being fastened to the top part, and the other axial end to the base part ,and the outer casing (3) forming the mechanical connection between the top part (4) and the base part (2). |
