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。

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I've walked every square foot of it many times.

我曾许多次地走过它的每一尺每一寸。

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Sonic booms are measured in pounds per square foot of overpressure.

音爆是以每平方英尺的超压磅数来测量的。

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Sometimes they give you the speed in miles per hour, kilometers per year, pounds per square foot.

有时候速度的单位是英里/小时,千米/年,英磅/平方米

耶鲁公开课 - 基础物理课程节选

This oddly democratic phenomenon is also evident in the nearly 6 million square foot Dubai Mall.

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The average building uses 6 to 7 watts of electricity per square foot, according to Komorowski.

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On January 31, 2013 the company opened a 15, 000 square foot flagship store in Shanghai.

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