发布时间:2025-01-23 11:31:22
老式冰箱调节温度是一个温控器旋钮,数字越高温度越低,一般夏季调到三档就可以了。照明灯不能总亮,总亮会费电的还会散发热量影响冷藏室温度,所以会有个门开关,关门关灯,开门开灯。
风管消声器在计价时是以内径风管尺寸或者是以扩大部分尺寸计价呢
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