吸水管阻力太大，吸水管管径太小。
The resistance of suction pump is too large. The diameter of suction is too large.
打开油管管路和水管管路上有关的阀门。
Open the relevant valves on the oil pipe line and the water pipe line.
关闭相关的油管管路和水管管路上的阀门。
Close the relevant valves on the oil pipe line and the water pipe line.
关闭相关的油管管路和水管管路上的阀门。
Close the relevant valves on the oil pipe line and the water pipe line.
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