The loss volume of water is very small, without needing to change much water, and the energy for getting water and maintaining temperature is very little.
水的损失量非常小，无需大量换水，取水及维持温度所需能量很小。
The loss volume of water is very small, without needing to change much water, and the energy for getting water and maintaining temperature is very little.
水的损失量非常小，无需大量换水，取水及维持温度所需能量很小。
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