A pneumatically static balancer for a machine tool counterbalances or lightens a gravitational load generated by an own weight of a vertically moving driven member. The hydroformylation reactor is equipped with a distributor plate, which has a broad contact surface for providing sufficient reaction area for reactants such as olefins and synthesis gas, and allows the reaction mixture to circulate and mix sufficiently, which contribute to excellent efficiency in terms of production of aldehydes. Magnetic elements with at least eight magnetization directions are also provided. The method also includes replacing the original MRC with the new MRC in the electronic version of the document at substantially the same location as the original MRC in the document.