补充抽吸 从消火栓或吸水源抽吸的英文

su lemental pumping

supplemental pumping

• 补充:    replenish; supplem ...
• 抽:    take out
• 吸:    inhale; breathe in ...
• 从:    follow
• 消火栓:    fire hydrant; fire ...
• 或:    nǎi-.
• 水源:    headwaters; waterh ...