| 摘要 |
In order to pump up fish in a gentle manner from a cod end being towed by a vessel by means of a fish pump located at the end of the cod end, a throttle valve for adjusting the admission of the catch to the pump is positioned in the inlet suction channel of the pump. A direct sea water inlet to the pump inlet is provided in the form of openings with throttles for adjustment of the direct sea water inflow. Thus, the ratio between the fish from the cod end and sea water supplied directly to the pump is controlled.
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