What those early craftsmen had found by trial and error was that under pressure a pagoda's loose stack of floors could be made to slither to and fro independent of one another.
"那些早期的工匠通过反复试验发现：在压力作用下，宝塔松散堆叠的楼层可以彼此独立地来回滑动。
2
The oil pressure will force it up into the heart of the stack of valves.
石油的压力会迫使它上升到真空阀的中心处。
3
A smaller stack of dollars for compensation also puts pressure on the country's fleet of workers for retirement.