The inventive air storage groove can improve the pressurize effect of airflow, to improve the heat emission ability.

利用所述贮气槽可提高气流的增压效果，进而提高离心式风扇的散热能力。

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The stability of the welding arc depends mainly on the voltage and the gas ionization when current zero-crossing as well as the electron emission ability of the electrode.

其电弧稳定与否，主要取决于电流过零瞬间的电弧空间电离度、 电极发射电子能力及再引燃电压的上升速度。

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The tungsten cathode materials added rare earth oxide have wide application foreground because of a variety of advantages including work function, electronic emission ability and work temperature.

掺杂稀土氧化物的钨阴极材料以其较低的逸出功、更强的电子发射能力、低的工作温度等特性引起了极大关注。

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Just as Luther criticised indulgences, critics of offsetting argue that the ability to buy retrospective forgiveness for sins of emission is no substitute for not sinning in the first place.

ECONOMIST: Carbon offsets