| http://www.w3.org/ns/prov#value | - On the suction side, however, the pump 30 acts in such a manner as to form, with the aid of the dividing member 34, a suction chamber 38.1 which increases in size on the rotation of the rotor 33 and in which the pressure falls further and further, so that finally it becomes lower than the pressure in the suction chamber 63.1 of the delivery hose 32, with the consequence that fluid to be pumped is
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