The brain consumes electrical energy at the rate of 25 watts and occupies a volume of one tenth of a cubic foot. 人脑对电能的消耗率约为25瓦特，其体积约为1/10立方尺。
So little is known about it, because there is only about 1 ATOM OF FRANCIUM IN A CUBIC FOOT OF URANIUM ORE! 对它所知甚少,因为在1立方英尺的铀矿石中,仅有1个钫原子!
Each carton measured about half a cubic foot, and each working day, 15 to 20 railcar loads were loaded and shipped from it to various food chain warehouses and to a few large grocery brokers. 每个纸箱大约50立方英尺，每个工作日，15至20列车的产品被装载运输到各个食物连锁店的仓库和几个大型超市经纪人那里。
Eg. We know that the weight of a cubic foot of air at0 oC and76 cm， pressure is0.08 l pound, or12 cubic feet of air weigh a pound. 我们知道，1立方英尺的空气在0摄氏度和760毫米汞柱压力下，重量是0.
A unit of internal capacity of a ship equal to 100 cubic feet. 装载吨船舶内部容积单位，等于一百立方英尺。