Already silently fuming that he hadn't offered to do his share of the driving, Ms. Floyd was astounded when her then-boyfriend didn't lift a finger to pump the gas.
The water flow velocity in the suction pipe, which is crucial for evaluating the performance on pumping fish, can be measured by the pumped water flow rate of the riser in an air liftpump system.
气力提升泵的水输送量反映了提升管进口的流速情况,而进口流速是衡量吸鱼效果的重要因素。
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This year, instead of making the same old New year resolutions, perhaps it would be more meaningful to prime the pump with the very qualities you would like to see more of in your lift!