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
Learning from other countries 'successful experience, the key problem is to improve the system of trial, guarantee judge's independent exercise over jurisdiction, which is also inevitable.