But its insulation heat preservation effect is good, high, low thermal conductivity, energy conservation and environmental protection.
但其保温性能高，保温效果好，导热系数低，节能环保。
The household heat measurement system for heating buildings has been put into effect. It provides effective way for buildings energy conservation. But there are many problems in engineering.
住宅供暖分户热计量的实施，为建筑节能提供了有效途径，但在实际工程中仍存在许多问题。
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