之前用燃气加热，需要几分钟才能把冰从模具里取出，而利用电脉冲法，只需要四秒就可以完成。

Whereas it can take several minutes for hot gas to get the ice out of the mold, a high-power electrical pulse takes about four seconds.

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这一过程叫做高温裂解，它能够创造能量而非消耗能量，因为在裂解过程中被释放的可燃气体多于将窑加热所需的气体。

This process, known as pyrolysis, creates rather than consumes energy, as more combustible gases are released than are needed to heat up the kiln.

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我有燃气加热取暖。

I have gas heat; I heat with gas.

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