I was altering the pump strokes per minute.
我正在调整泵的每分钟冲数。
Record stand pipe pressure and pump strokes.
记录泵压和泵冲。
I was adjusting the pump strokes per minute.
我正在调整泵的每分钟冲数。
Step on flush water valve and pump at least 15 strokes with pump handle.
脚踩在进水阀门踏板上，同时将手摇泵摇压最少15下。
Step on flush water valve and pump at least 15 strokes with pump handle.
脚踩在进水阀门踏板上，同时将手摇泵摇压最少15下。
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