以上来源于: WordNet
Their calculations showed that small waves of air in repeated fast pulses could steer a carpet at a speed of around one foot per second.
他们的计算表明,快速而持续的微小空气波动可以使毯子达到每秒一英尺(译者:30.48厘米)的飞行速度。
If scientists were to detect a 600-foot-wide asteroid ten years in advance, Yeomans says, it could be deflected with a two-ton projectile traveling six miles per second.
约曼斯说,如果科学家能提前10年探测到一颗600英尺直径的小行星,就可以使用一颗两吨重,每秒速度6英里的弹道飞行器使其偏离轨道。
Second quarter 2014 ending inventory at cost per foot is expected to decline in the mid teens, or mid single-digits excluding the change in ownership terms.
2014第二季度结束的每米成本库存预计将在中期青少年下降,或个位数排除在所有权方面的变化。
应用推荐