The insulation layer is between the outer cover and the inner liner of the water tank, insulation performance will directly influence the actual available amount of how much solar hot water.
保温层是水箱外皮与内胆之间的部分，保温层性能的好坏直接影响太阳能实际可用热水量的多少。
The insulation layer is between the outer cover and the inner liner of the water tank, insulation performance will directly influence the actual available amount of how much solar hot water.
保温层是水箱外皮与内胆之间的部分，保温层性能的好坏直接影响太阳能实际可用热水量的多少。
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