If you lag your hot water tank, you'll save money on your fuel bills.

如果你给热水箱装上外套，你就可以少付燃料费帐了。

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If you lag your hot water tank, you'll save money on fuel bills.

如果给热水箱装上绝热层，就能节省燃料费。

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It is found that the floor surface temperature variety exponentially with time after the change of water condition, and the heat lag in the heating period is about half of that in cooling period.

发现供水状态变化后，地板表面温度随时间呈指数变化，升温期的稳定时间约为降温期的一半。

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Li urged us to soak our feet in hot water before bed, to fight jet lag, and to eat extra fruit, which might balance the European infusion of bread and cheese into our diets.

NEWYORKER: The Grand Tour