Exposure is more efficient, energy foot, machine lighter weight.
曝光效率更高,能量足,机器重量更轻。
Houses built before 1939 use about 50% more energy per square foot than those built after 2000, mainly due to the tiny cracks and gaps that expand over time and let in more outside air.
1939年以前建造的房屋每平方英尺消耗的能源比2000年以后建造的房屋多50%,这主要是由于微小的裂缝随着时间的推移而扩大,更多的外部空气进入了裂缝。
It's quite possible that someone living in an older, 2, 000-square-foot, two-bedroom house could use more energy than a family living in a new 6, 000-square-foot McMansion.
也就是说,一家住在2000平方英尺带有两个卧室的老式的房子里的人,很有可能比一家住在6000平方英尺全新的庞大房子中的人耗费更多的能源。
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