If you took a 15 inch artillery shell moving at the velocity it typically goes at, and take that amount of kinetic energy versus the resistive capacity of a sheet of tissue paper, that's the scale that we're looking at here.

如果你有1个15英寸的炮弹,按照经典的速度移动，会消耗大量的动能,抵抗来自于一张薄纸的阻力，这就是我们在这儿看到的尺度。

麻省理工公开课 - 固态化学导论课程节选

It was practical books about fortifications, hydraulics, artillery, navigation, and shipbuilding.

而是实际的书籍,比如有关防御工事的,水力学,炮术,航海和造船的

耶鲁公开课 - 欧洲文明课程节选

The heavy artillery in the orchestra is what?

管弦乐团中的重炮是什么

耶鲁公开课 - 聆听音乐课程节选

So, held back here the heavy artillery.

那么,藏在后面的是重炮

耶鲁公开课 - 聆听音乐课程节选