Finally, these findings do not indicate a need for a change in phase level.

最后，这些结果并不表明需要改变预警阶段级别。

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The second is latent heat, the energy required to effect a change in phase of a fluid, as in boiling or condensing.

第二类是潜热，即引起流体相变所需的热量，如沸腾和凝析。

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The first is sensible heat, which is just the energy required to change the temperature of a fluid with no change in phase.

第一类是显热，即在不发生相变的条件下改变流体温度所需要的能量。

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Find some photos below and continue on past the break for a video where you can see (and hear) that Phase Change setup in action.

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He should be explaining that the economy is not just recovering from the Great Recession: it is in a phase change to a different kind of economy: the innovation economy.

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The key to any attempt to raise the eligibility age, Social Security experts agree, is to phase in any change slowly, giving workers who are now in late or mid-career time to adjust their retirement plans.

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