Without using the blast pump, the whole system can operate stably.

无需鼓风泵，系统即可稳定运行。

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Pump installed in the blast area should be based on an explosion regional levels, using explosion-proof motor.

安装在爆炸区域的泵，应根据爆炸区域等级，采用防爆电动机。

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Heat is generated via an air-water-heating pump whereby the blast apparatus, which causes a noise, is placed outside together with the heat exchanger.

通过水汽加热泵装置生成热量，它会在热交换器内产生噪音。

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The bleak surroundings don't dampen spirits: Some 2, 000 people have shown up, many in cars rigged with speakers on the hoods to pump out Gypsy pop at full blast.

NPR: Gypsies Flock To Bridal Fair As Parents Negotiate