She said her product is cheaper, stronger, and has a higher insulation value, which will result in less deforestation.
她说她的产品更廉价、结实，有更好的绝缘性，这样就无需更多砍伐森林了。
Insulation value
原声例句
VOA Standard 2014年5月合集
英语百科
R-value (insulation)
（重定向自Insulation value）
The R-value is a measure of thermal resistance used in the building and construction industry. Under uniform conditions it is the ratio of the temperature difference across an insulator and the heat flux (heat transfer per unit area per unit time, 
) through it or 
. Thermal resistance varies with temperature but it is common practice in construction to treat it as a constant value.
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