As for the other 97 % of buildings in Taiwan that were built before the rules came into effect, how can their energy efficiency be improved?
即使透過法令規範全面管制建築物的能源使用，但是範圍仍僅限於新建築，其他佔 97 % 的建築，在木已成舟的情況下，如何提升能源效率？