让水流动至少两分钟，使得供水温度稳定下来。
Let water flow for at least two minutes to allow supply temperature to stabilize.
质调节是只改变供水温度，不改变循环流量的调节。
Temperature control only changes the temperature of water supply, does not change flow.
质调节是只改变供水温度，不改变循环流量的调节。
Temperature control only changes the temperature of water supply, does not change flow.
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