overall thermal transfer value meaning in English
热传导总值
总热传送值
Examples
- Overall thermal transfer value
总热传送值 - In 2000 , over 90 per cent of new government building projects achieved an overall thermal transfer value ( ottv ) of not more than 23 watts per square metre , and 10 per cent of new projects have achieved an ottv of less than 18 watts per square metre
年内，新的公营建筑物有九成以上热传导总值达到每平方米低于23瓦的水平，近一成新建筑物的热传导总值更低至每平方米不足18瓦，比现行每平方米30瓦的法定标准优胜得多。